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You searched for: Journal name RSC advances Remove constraint Journal name: RSC advances Subject term X-ray diffraction Remove constraint Subject term: X-ray diffraction Subject term crystal structure Remove constraint Subject term: crystal structure Subject term crystals Remove constraint Subject term: crystals Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Alleviate the J–V hysteresis of carbon-based perovskite solar cells via introducing additional methylammonium chloride into MAPbI₃ precursor

Author:
Huirong Jiang; Xingyu Liu; Nianyao Chai; Fuzhi Huang; Yong Peng; Jie Zhong; Qi Zhang; Zhiliang Ku; Yi-bing Cheng
Source:
RSC advances 2018 v.8 no.61 pp. 35157-35161
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystals; electric current; hysteresis; solar cells
Abstract:
... The hysteretic phenomenon commonly exists in the J–V curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). By adding moderate amounts of methylammonium chloride (MACl) into MAPbI₃ perovskite precursor, we found the J–V hysteresis of carbon-based PSCs could be significantly alleviated and ...
DOI:
10.1039/c8ra04347g

2. Antisolvent diffusion-induced growth, equilibrium behaviours in aqueous solution and optical properties of CH₃NH₃PbI₃ single crystals for photovoltaic applications

Author:
Huawei Zhou; Zhonghao Nie; Jie Yin; Yuanwei Sun; Hongyan Zhuo; Daqi Wang; Dacheng Li; Jianmin Dou; Xianxi Zhang; Tingli Ma
Source:
RSC advances 2015 v.5 no.104 pp. 85344-85349
ISSN:
2046-2069
Subject:
X-ray diffraction; aqueous solutions; chloroform; crystal structure; crystallization; crystals; ethyl ether; methylene chloride; optical properties; potassium iodide; screening; solar cells; solvents; tetrahydrofuran
Abstract:
... Crystallization and decomposition of organolead trihalide perovskites (OTPs) are very sensitive to the presence of water in precursor or in ambient conditions. Thus, understanding equilibrium behaviours (crystallization and decomposition) of OTPs in aqueous solution is very critical for OTP solar cells fabricated with water-based precursor solutions. Here, equilibrium behaviours in an aqueous solu ...
DOI:
10.1039/c5ra17579h

3. Biomimetic 3D hydroxyapatite architectures with interconnected pores based on electrospun biaxially orientated PCL nanofibers

Author:
Zhiqiang Su; Jingfeng Li; Zhaofei Ouyang; Matthias M. L. Arras; Gang Wei; Klaus D. Jandt
Source:
RSC advances 2014 v.4 no.29 pp. 14833-14839
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; biomimetics; body fluids; bone morphogenetic proteins; chemical bonding; chemical composition; confocal laser scanning microscopy; crystal structure; crystals; drugs; gene transfer; hydroxyapatite; mineralization; nanofibers; nanopores; polymers; scanning electron microscopy; tissue engineering; transmission electron microscopy
Abstract:
... We report here a facile strategy to fabricate three-dimensional (3D) hydroxyapatite (HA) architectures with well-defined long continuous interconnected pores by using electrospinning and biomimetic mineralization. To this end, a polymeric nanofiber (NF) scaffold with well-defined architecture was fabricated by electrospinning, and bone morphogenetic protein 2 (BMP2) was then adsorbed onto the chem ...
DOI:
10.1039/c3ra46457a

4. Cations substitution tuning phase stability in hybrid perovskite single crystals by strain relaxation

Author:
C. Wu; K. Chen; D. Y. Guo; S. L. Wang; P. G. Li
Source:
RSC advances 2018 v.8 no.6 pp. 2900-2905
ISSN:
2046-2069
Subject:
X-ray diffraction; ambient temperature; cations; crystal structure; crystallization; crystals; lead
Abstract:
... Methylammonium (MA) and formamidinium (FA) are two typical A site cations in lead halide perovskites. Instability of synthesised crystals will degrade the properties of the photoelectrical device constructed by such perovskites. MAPbI₃ and FAPbI₃ in cubic crystal structure have been demonstrated to be the most stable at room temperature. Herein we synthesised MA(EA)PbI₃ and FA(MA)PbI₃ single cryst ...
DOI:
10.1039/c7ra12521f

5. Combined experimental and computational insights into the key features of l-alanine l-alaninium picrate monohydrate: growth, structural, electronic and nonlinear optical properties

Author:
Shabbir Muhammad; Mohd. Shkir; S. AlFaify; Ahmad Irfan; Abdullah G. Al-Sehemi
Source:
RSC advances 2015 v.5 no.67 pp. 53988-54002
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; alanine; cooling; crystal structure; crystals; electronic equipment; geometry; prototypes; quantum mechanics; reflectance; urea
Abstract:
... In the current work, we spotlight the novel key features of l-alanine l-alaninium picrate monohydrate (LALAPM) using a dual approach comprised of experimental and computational techniques. Single crystals of LALAPM have been grown indigenously in three different ratios (1 : 1, 1 : 5, 2 : 1) through a slow cooling technique. The formations of different types of crystals were recorded during the gro ...
DOI:
10.1039/c5ra05533d

6. Comment on ‘Solution growth and thermal treatment of crystals lead to two new forms of 2-((2,6-dimethylphenyl)amino)benzoic acid’ by R. Hu, Y. Zhoujin, M. Liu, M. Zhang, S. Parkin, P. Zhou, J. Wang, F. Yu and S. Long, RSC Adv., 2018, 8, 15459

Author:
Paulo R. S. Salbego; Tainára Orlando; Marcos A. P. Martins
Source:
RSC advances 2019 v.9 no.48 pp. 28195-28198
ISSN:
2046-2069
Subject:
X-ray diffraction; benzoic acid; crystal structure; crystals; heat treatment
Abstract:
... The study mentioned in the title of this comment article reports on two new polymorphic forms of 2-((2,6-dimethylphenyl)amino)benzoic acid, one with new X-ray diffraction data showing its crystal structure, and the other without. However, our investigation suggests that the newly reported crystal structure (Form II) is in fact the same structure previously reported (Form I), differing in how the s ...
DOI:
10.1039/c8ra07188h

7. Coordination properties of N,N′-bis(5-methylsalicylidene)-2-hydroxy-1,3-propanediamine with d- and f-electron ions: crystal structure, stability in solution, spectroscopic and spectroelectrochemical studies

Author:
Malgorzata T. Kaczmarek; Monika Skrobanska; Michal Zabiszak; Monika Wałęsa-Chorab; Maciej Kubicki; Renata Jastrzab
Source:
RSC advances 2018 v.8 no.54 pp. 30994-31007
ISSN:
2046-2069
Subject:
X-ray diffraction; acetates; copper; crystal structure; crystals; ions; ligands; methanol; microstructure; pH; scanning electron microscopy; spectroscopy
Abstract:
... Template reaction between 5-methylsalicylaldehyde and 2-hydroxy-1,3-propanediamine in the presence of copper ion led to dinuclear and mononuclear copper(ii) complexes [Cu₂L(CH₃COO)(CH₃OH)](CH₃OH) (1) and [CuHL](CH₃OH) (2), where H₃L is N,N′-bis(5-methylsalicylidene)-2-hydroxy-1,3-propanediamine. The result of the reactions between 5-methylsalicylaldehyde and 2-hydroxy-1,3-propanediamine in the pre ...
DOI:
10.1039/c8ra03565b

8. Crystal structure analysis of phycocyanin from chromatically adapted Phormidium rubidum A09DM

Author:
Gagan Deep Gupta; Ravi R. Sonani; Mahima Sharma; Krishna Patel; Rajesh P. Rastogi; Datta Madamwar; Vinay Kumar
Source:
RSC advances 2016 v.6 no.81 pp. 77898-77907
ISSN:
2046-2069
Subject:
Phormidium; Rhodophyta; X-ray diffraction; chemical bonding; chlorophyll; crystal structure; crystals; matrix-assisted laser desorption-ionization mass spectrometry; phycocyanin; phylogeny; polyacrylamide gel electrophoresis; red light; sequence analysis; spectral analysis; white light
Abstract:
... Phycobilisome (PBS), a light harvesting complex of phycobili proteins found in cyanobacteria and red algae, funnels photo-energy to chlorophyll through the network of covalently attached light absorbing chromophores. Phycocyanin, a component protein of PBS, was over-expressed using monochromatic red light in place of white light by chromatically adapted Phormidium rubidum A09DM. The phycocyanin pr ...
DOI:
10.1039/c6ra12493c

9. Crystallization and temperature-dependent structure deflection of C₆mimBr ionic liquid intercalated in LAPONITE®

Author:
Fangling Jiang; Cheng Li; Xiaojing Guo; Haiying Fu; Guozhong Wu; Shimou Chen
Source:
RSC advances 2016 v.6 no.100 pp. 98018-98025
ISSN:
2046-2069
Subject:
X-ray absorption spectroscopy; X-ray diffraction; ambient temperature; bromine; cations; crystal structure; crystallization; crystals; differential scanning calorimetry; hydrogen bonding; ionic liquids; nanopores; physicochemical properties; transmission electron microscopy
Abstract:
... The physicochemical properties of large molecules confined in nanopores are expected to be different from those of the bulk. This study investigates the cation–anion relative position and the molecular orientation of the 1-hexyl-3-methylimidazolium bromide (C₆mimBr) ionic liquid intercalated in LAPONITE® by a temperature-dependent X-ray absorption fine structure (XAFS) and some traditional methods ...
DOI:
10.1039/c6ra18618a

10. Crystallization of ultrathin poly(3-hydroxybutyrate) films in blends with small amounts of poly(l-lactic acid): correlation between film thickness and molecular weight of poly(l-lactic acid)

Author:
Khasanah; Isao Takahashi; Kummetha Raghunatha Reddy; Yukihiro Ozaki
Source:
RSC advances 2017 v.7 no.83 pp. 52651-52660
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystallization; crystals; molecular weight; polylactic acid; separation; spectroscopy
Abstract:
... The crystallization behavior of poly(3-hydroxybutyrate) (PHB) ultrathin films in blends with small amounts of poly(l-lactic acids) (PLLAs) was investigated using grazing incidence X-ray diffraction (GIXD) and infrared-reflection absorption spectroscopy (IRRAS). Ultrathin films of PHB/PLLA with the same blend ratio of 80/20 (w/w) and two different film thicknesses (30 and 13 nm) were prepared using ...
DOI:
10.1039/c7ra10996b

11. Effect of ethanol on the crystallinity and acid sites of MFI zeolite nanosheets

Author:
Qiang Zhang; Honghui Yang; Wei Yan
Source:
RSC advances 2014 v.4 no.100 pp. 56938-56944
ISSN:
2046-2069
Subject:
Bronsted acids; Fourier transform infrared spectroscopy; Lewis acids; X-ray diffraction; aluminum; ammonium; crystal structure; crystallization; crystals; ethanol; hot water treatment; nanosheets; nitrogen; oxygen; porous media; sorption isotherms; surfactants; texture; zeolites
Abstract:
... A series of MFI zeolite nanosheets were synthesized using hydrothermal method with ammonium surfactant (C₂₂₋₆₋₆) as the zeolite structure-generating agent. The effects of ethanol concentration on the textural properties, crystal morphology and acidic properties of the zeolite samples were studied. The zeolite samples were characterized by X-ray powder diffraction, N₂ adsorption isotherms and scann ...
DOI:
10.1039/c4ra08344j

12. Effects of N-oxidation on the molecular and crystal structures and properties of isocinchomeronic acid, its metal complexes and their supramolecular architectures: experimental, CSD survey, solution and theoretical approaches

Author:
Zahra Hosseini-Hashemi; Masoud Mirzaei; Ameneh Jafari; Peyman Hosseinpour; Mohammad Yousefi; Antonio Frontera; Mahmoud Lari Dashtbayaz; Mojtaba Shamsipur; Mehdi Ardalani
Source:
RSC advances 2019 v.9 no.44 pp. 25382-25404
ISSN:
2046-2069
Subject:
X-ray diffraction; cobalt; copper; crystal structure; crystals; databases; dicarboxylic acids; ethanol; hydrogen bonding; infrared spectroscopy; ligands; nickel; nitrogen oxides; oxygen; piperazine; polymers; stoichiometry; surveys; zinc
Abstract:
... Nine coordination complexes and polymer (M/L/X) based on Co, Ni, Zn, Cu (M), pyridine-N-oxide-2,5-dicarboxylic acid (H₂pydco) (L) and either isonicotinamide (Ina), piperazine (pipz), 2,2′-bipyridine (bipy) and 1,10-phenanthroline (phen) (X) were synthesized and characterized by elemental analyses, infrared spectroscopy and single crystal X-ray diffraction. The resulting empirical formulae of the p ...
DOI:
10.1039/c9ra05143k

13. Epitaxial crystallization of precisely bromine-substituted polyethylene induced by carbon nanotubes and graphene

Author:
Weijun Miao; Bingjie Wang; Yiguo Li; Wenge Zheng; Hongbing Chen; Li Zhang; Zongbao Wang
Source:
RSC advances 2017 v.7 no.29 pp. 17640-17649
ISSN:
2046-2069
Subject:
X-ray diffraction; carbon nanotubes; crystal structure; crystallization; crystals; differential scanning calorimetry; graphene; graphene oxide; melting point; models; nanocomposites; polyethylene; polyolefin; temperature; transmission electron microscopy
Abstract:
... Precisely substituted polyethylenes have well-defined primary structures and aggregation architecture. Herein, precisely bromine-substituted polyethylene (PE21Br) was chosen as an ideal model to investigate the substituent impact on epitaxial crystallization upon one-dimensional carbon nanotubes (CNT) and two-dimensional reduced graphene oxide (RGO) via solution crystallization. The abilities of d ...
DOI:
10.1039/c7ra00958e

14. Exploring weak intermolecular interactions in thiocyanate-bonded Zn(ii) and Cd(ii) complexes with methylimidazole: crystal structures, Hirshfeld surface analysis and luminescence properties

Author:
Alejandro Di Santo; Hiram Pérez; Gustavo A. Echeverría; Oscar E. Piro; Rodrigo A. Iglesias; Raúl E. Carbonio; Aida Ben Altabef; Diego M. Gil
Source:
RSC advances 2018 v.8 no.42 pp. 23891-23902
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; acetonitrile; cadmium; crystal structure; crystals; differential thermal analysis; emissions; hydrogen bonding; imidazoles; luminescence; thermal properties; thermogravimetry; ultraviolet-visible spectroscopy; zinc
Abstract:
... Four new thiocyanate-Zn(ii) and -Cd(ii) complexes with 1-methylimidazole (1-MeIm) and 2-methylimidazole (2-MeIm), namely, Zn(1-MeIm)₂(SCN)₂ (1), Zn(2-MeIm)₂(SCN)₂ (2), Cd(1-MeIm)₄(SCN)₂ (3) and polymeric [Cd(2-MeIm)₂(SCN)₂]ₙ (4), have been synthesized and characterized by IR, Raman and UV-Vis spectroscopy. The thermal behavior for all complexes was evaluated by thermo-gravimetric analysis and diff ...
DOI:
10.1039/c8ra04452j

15. Green preparation and characterization of a novel heat stabilizer for poly(vinyl chloride)–hydrocalumites

Author:
Xing Wen; Zhanhong Yang; Jie Yan; Xiaoe Xie
Source:
RSC advances 2015 v.5 no.40 pp. 32020-32026
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; aluminum hydroxide; calcium hydroxide; crystal structure; crystallization; crystals; heat; poly(vinyl chloride); scanning electron microscopy; sodium carbonate; stabilizers; thermal stability
Abstract:
... Hydrocalumites are successfully prepared by using Ca(OH)₂, Al(OH)₃ and Na₂CO₃ with different reaction times and crystallization times. The as-prepared samples are characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The results show that the as-prepared sample with the reaction time and crystallization time both being 4 ho ...
DOI:
10.1039/c5ra03654b

16. Growth, crystal structure, Hirshfeld surface, dielectric and mechanical properties of a new organic single crystal: ‘Bis glycine’ squarate

Author:
Nidhi Tyagi; Nidhi Sinha; Harsh Yadav; Binay Kumar
Source:
RSC advances 2016 v.6 no.29 pp. 24565-24576
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; chemical interactions; crystal structure; crystals; dielectric properties; differential thermal analysis; evaporation; hardness; melting point; moieties; strength (mechanics); thermal stability; thermogravimetry
Abstract:
... A novel transparent organic crystal ‘Bis glycine’ squarate has been grown by a slow evaporation method. Single crystal XRD confirms the monoclinic lattice with space group C2/c in BGSQ crystal with a refinement value (R) of 0.06. The molecular electron charge density distribution of the BGSQ compound is described. The growth rate of the BGSQ crystal is estimated by morphological study. The Hirshfe ...
DOI:
10.1039/c5ra18983g

17. Growth, physicochemical and quantum chemical investigations on 2-amino 5-chloropyridinium 4-carboxybutanoate – an organic crystal for biological and optoelectronic device applications

Author:
B. Babu; J. Chandrasekaran; B. Mohanbabu; Yoshitaka Matsushita; M. Saravanakumar
Source:
RSC advances 2016 v.6 no.112 pp. 110884-110897
ISSN:
2046-2069
Subject:
2,2-diphenyl-1-picrylhydrazyl; Fourier transform infrared spectroscopy; X-ray diffraction; absorption; ambient temperature; antioxidant activity; crystal structure; crystals; differential thermal analysis; economic threshold; evaporation; free radicals; hydrogen bonding; hydrogen peroxide; methanol; moieties; nuclear magnetic resonance spectroscopy; quantum mechanics; solvents; thermogravimetry; transmittance; wavelengths
Abstract:
... Optically transparent organic single crystals of 2-amino 5-chloropyridinium 4-carboxybutanoate (2A5C4C) with sizes of 7 × 4 × 2 mm³ were grown by a slow evaporation solution growth technique at room temperature using methanol solvent. The lattice parameter values of the crystals were evaluated by single crystal XRD; the results confirmed that 2A5C4C crystal belongs to the orthorhombic system with ...
DOI:
10.1039/c6ra15791b

18. Influences of melt-draw ratio and annealing on the crystalline structure and orientation of poly(4-methyl-1-pentene) casting films

Author:
Ai-ping Ma; Li-yang Xu; Bo Yin; Ming-bo Yang; Bang-hu Xie
Source:
RSC advances 2016 v.6 no.67 pp. 62038-62044
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; annealing; crystal structure; crystals; differential scanning calorimetry; melting; scanning electron microscopy; temperature
Abstract:
... Poly(4-methyl-1-pentene) casting films with row-nucleated lamellar structure were extruded through a slit die followed by stretching using a chill roll. The influences of melt draw ratio, annealing temperature, annealing time and supplied strain level on the crystalline morphology and orientation of the poly(4-methyl-1-pentene) casting films were carefully investigated by means of scanning electro ...
DOI:
10.1039/c6ra08156h

19. Intensive evaluation of radiation stability of phlogopite single crystals under high doses of γ-ray irradiation

Author:
Honglong Wang; Yaping Sun; Jian Chu; Xu Wang; Ming Zhang
Source:
RSC advances 2019 v.9 no.11 pp. 6199-6210
ISSN:
2046-2069
Subject:
X-ray diffraction; air; clay; crystal structure; crystals; dose response; gamma radiation; hydrophilicity; irradiation; radiation resistance; radioactive waste; radiolysis; scanning electron microscopy; thermal stability; thermogravimetry
Abstract:
... The evaluation of radiation stability of clay is important for the disposal of high-level radioactive waste (HLRW). In this study, phlogopite single crystals were irradiated by Co-60 γ-rays in air at a dose rate of 3.254 kGy h⁻¹ with doses up to 1000 kGy. Subsequently, the radiation stability and mechanism of radiation damage were explored by RS, FT-ATR, XRD, TGA, CA, and SEM techniques. In genera ...
DOI:
10.1039/c8ra08565j

20. Investigation of synthesis, crystal structure and third-order NLO properties of a new stilbazolium derivative crystal: a promising material for nonlinear optical devices

Author:
K. Senthil; S. Kalainathan; A. Ruban Kumar; P. G. Aravindan
Source:
RSC advances 2014 v.4 no.99 pp. 56112-56127
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; absorbance; absorption; ambient temperature; chemical etching; crystal structure; crystals; differential thermal analysis; economic threshold; energy; evaporation; hardness; luminescence; moieties; nuclear magnetic resonance spectroscopy; photonics; reflectance; refractive index; solubility; solvents; spectral analysis; sulfonates; thermal stability; thermogravimetry
Abstract:
... A new organic stilbazolium derivative crystal 2-[2-(3-hydroxy-4-methoxy-phenyl)-vinyl]-1-methyl-pyridinium naphthalene-2-sulfonate dehydrate (C₂₅H₂₃NO₅S·2H₂O) (VSNS) was synthesized successfully. Single crystals were grown in a mixed solvent of methanol–acetonitrile (1 : 1) using a slow evaporation method at room temperature. Solubility of the synthesized VSNS material was experimentally determine ...
DOI:
10.1039/c4ra09112d

21. Melting and β to α transition behavior of β-PBA and the β-PBA/PVPh blend investigated by synchrotron SAXS and WAXD

Author:
Xiaoli Sun; Junteng Liu; Isao Takahashi; Shouke Yan
Source:
RSC advances 2014 v.4 no.74 pp. 39101-39109
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystallization; crystals; heat; melting; small-angle X-ray scattering; wide-angle X-ray scattering
Abstract:
... Synchrotron small-angle X-ray scattering (SAXS) and wide-angle X-ray diffraction (WAXD) are used to monitor the melting and βα transition behavior of β-PBA and the β-PBA/PVPh blend during the heating process. After melt recrystallized at 10 °C, the β crystals are obtained. The lamellar thickness of β crystals in the neat PBA is similar to that in its PBA/PVPh blend and the long period for the form ...
DOI:
10.1039/c4ra04752d

22. Metal–organic framework in an l-arginine copper(ii) ion polymer: structure, properties, theoretical studies and microbiological activity

Author:
Agnieszka Wojciechowska; Anna Gągor; Wiktor Zierkiewicz; Anna Jarząb; Agnieszka Dylong; Marek Duczmal
Source:
RSC advances 2015 v.5 no.46 pp. 36295-36306
ISSN:
2046-2069
Subject:
Bacillus subtilis; Candida albicans; Enterococcus hirae; Escherichia coli; Fourier transform infrared spectroscopy; Gram-negative bacteria; Pseudomonas aeruginosa; Raman spectroscopy; Saccharomyces cerevisiae; Salmonella enterica; Shigella flexneri; Staphylococcus aureus; Streptococcus mutans; X-ray diffraction; antimicrobial properties; arginine; coordination polymers; copper; crystal structure; crystallization; crystals; differential scanning calorimetry; electron paramagnetic resonance spectroscopy; fungi; geometry; growth retardation; ligands; magnetism; models; nitrogen; oxygen; thermogravimetry; zwitterions
Abstract:
... A novel 1D polymeric copper(ii) complex with l-arginine and a linear bridged 4,4′-bipyridine with a formula of {[Cu(l-Arg)₂(μ-4,4′-bpy)]Cl₂·3H₂O}∞ (1) (where l-Arg = l-arginine, 4,4′-bpy = 4,4′-bipyridine) was synthesized. The crystal structure and properties of the product were characterized using X-ray diffraction, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), spectr ...
DOI:
10.1039/c5ra02790j

23. Morphology and crystallization behavior of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/polyhedral oligomeric silsesquioxane hybrids

Author:
Yuqi Zhou; Mingming Zhao; Haiyang Guo; Yuhao Li; Qingsheng Liu; Bingyao Deng
Source:
RSC advances 2019 v.9 no.15 pp. 8146-8158
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; atomic force microscopy; crystal structure; crystallization; crystals; energy-dispersive X-ray analysis; equations; silsesquioxanes; temperature; tensile strength; thermal properties
Abstract:
... Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/polyhedral oligomeric silsesquioxane (PHBV/POSS) hybrids with different POSS contents of 5, 10, 15, 20, 25 and 30 wt% were prepared by solution casting. The composition, crystallization and melting behavior, crystal structure, spherulite morphology, surface morphology, and tensile properties of PHBV/POSS hybrids were characterized by EDS, DSC, FTIR, XRD ...
DOI:
10.1039/c8ra09281h

24. Morphology evolution and impurity analysis of LiFePO₄ nanoparticles via a solvothermal synthesis process

Author:
Xiankun Huang; Xiangming He; Changyin Jiang; Guangyu Tian
Source:
RSC advances 2014 v.4 no.99 pp. 56074-56083
ISSN:
2046-2069
Subject:
X-ray diffraction; acidity; crystal structure; crystals; electrochemistry; ethylene glycol; heat treatment; iron oxides; nanoparticles; nanorods; pH; phosphoric acid; powders; scanning electron microscopy; solvents; transmission electron microscopy; washing
Abstract:
... A solvothermal method is applied for synthesizing LiFePO₄ nanoparticles using ethylene glycol as solvent. Crystals are obtained with quite different morphologies at solutions of various acidity prepared via changing the primary LiOH/H₃PO₄ mole ratios. SEM, TEM, and HRTEM are used to analyze the samples. Element distribution in solid LiFePO₄ particles, mother solutions and washing solutions are tra ...
DOI:
10.1039/c4ra09484k

25. Na–Ga–Si type-I clathrate single crystals grown via Na evaporation using Na–Ga and Na–Ga–Sn fluxes

Author:
Hironao Urushiyama; Haruhiko Morito; Hisanori Yamane; Masami Terauchi
Source:
RSC advances 2018 v.8 no.71 pp. 40505-40510
ISSN:
2046-2069
Subject:
X-radiation; X-ray diffraction; crystal structure; crystals; energy; evaporation; melting; models; silicon; sodium; temperature; tin
Abstract:
... Single crystals of a Na–Ga–Si clathrate, Na₈Ga₅.₇₀Si₄₀.₃₀, of size 2.9 mm were grown via the evaporation of Na from a Na–Ga–Si melt with the molar ratio of Na : Ga : Si = 4 : 1 : 2 at 773 K for 21 h under an Ar atmosphere. The crystal structure was analyzed using X-ray diffraction with the model of the type-I clathrate (cubic, a = 10.3266(2) Å, space group Pm3̄n, no. 223). By adding Sn to a Na–Ga– ...
DOI:
10.1039/c8ra07971d

26. New crystal structure and discharge efficiency of poly(vinylidene fluoride-hexafluoropropylene)/poly(methyl methacrylate) blend films

Author:
Guirong Peng; Xiaojia Zhao; Zaiji Zhan; Shengzong Ci; Qian Wang; Yanjuan Liang; Mingliang Zhao
Source:
RSC advances 2014 v.4 no.32 pp. 16849-16854
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystals; dielectric properties; energy; melting point; phase transition; polymethylmethacrylate
Abstract:
... A series of PMMA/poly(vinylidene fluoride-hexafluoropropylene) [P(VDF-HFP)] blend films were prepared with a solution blending process to improve discharge efficiency. The crystal structure and properties of the PMMA/P(VDF-HFP) blend films were carefully studied. The results show that the crystallinity, the dielectric constant and the loss of the polymer blend films decreased, while melting temper ...
DOI:
10.1039/c3ra47462c

27. Nucleating effect of multi-walled carbon nanotubes and graphene on the crystallization kinetics and melting behavior of olefin block copolymers

Author:
Siduo Wu; Hui Li; Guangsu Huang; Jinrong Wu
Source:
RSC advances 2014 v.4 no.36 pp. 19024-19033
ISSN:
2046-2069
Subject:
X-ray diffraction; activation energy; carbon nanotubes; composite polymers; crystal structure; crystallization; crystals; differential scanning calorimetry; energy; graphene; heat; light microscopy; melting; mixing; nanocomposites; nanoparticles; olefin; temperature; thermal properties; wide-angle X-ray scattering
Abstract:
... Crystallization is of primary importance to the properties of olefin block copolymers (OBCs). In the present work, multi-walled carbon nanotubes (MWCNTs) and graphene are used as nucleating agents for the crystallization of OBC. Thus nanocomposites of OBC filled with MWCNTs and graphene were prepared by solution blending. Differential scanning calorimetry (DSC) tests were carried out to study the ...
DOI:
10.1039/c4ra01776e

28. Performance of hierarchical HZSM-5 zeolites prepared by NaOH treatments in the aromatization of glycerol

Author:
Weiyin Xiao; Fei Wang; Guomin Xiao
Source:
RSC advances 2015 v.5 no.78 pp. 63697-63704
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; acidity; adsorption; alkali treatment; aromatization; benzene; carbon; catalysts; catalytic activity; composite materials; crystal structure; crystals; glycerol; methanol; micropores; nitrogen; porous media; pyridines; sieves; sodium hydroxide; solvents; texture; toluene; xylene; zeolites
Abstract:
... A series of hierarchical HZSM-5 zeolites were prepared by post-synthesis modification of conventional bulk crystals of HZSM-5 zeolite with sodium hydroxide (NaOH) solution at different concentrations. These micro–mesoporous composite molecular sieves were characterized by powder X-ray diffraction, transmission electron microscopy, nitrogen adsorption, Fourier transform infrared (FT-IR) spectroscop ...
DOI:
10.1039/c5ra07593a

29. Phosphorous acid route synthesis of iron tavorite phases, LiFePO₄(OH)ₓF₁₋ₓ [0 ≤ x ≤ 1] and comparative study of their electrochemical activities

Author:
Hooman Yaghoobnejad Asl; Amitava Choudhury
Source:
RSC advances 2014 v.4 no.71 pp. 37691-37700
ISSN:
2046-2069
Subject:
X-ray diffraction; comparative study; crystal structure; crystals; dielectric spectroscopy; electric potential difference; electrochemistry; iron; lithium; nitrates; phosphates; phosphorous acid; temperature
Abstract:
... New synthesis routes were employed for the synthesis of three derivatives of iron hydroxo-, fluoro-, and mixed hydroxo-fluoro phosphates LiFePO₄(OH)ₓF₁₋ₓ where 0 ≤ x ≤ 1 with the tavorite structure type, and their detail electrochemical activities have been presented. The hydrothermal synthesis of the pure hydroxo-derivative, LiFePO₄OH, using phosphorous acid as a source of phosphate yielded good ...
DOI:
10.1039/c4ra05391e

30. Physicochemical characterization to assess Ni and Zn incorporation into zeotype SAPO-34 nanoparticles synthesized with different mixing methods through ultrasound-promoted crystallization

Author:
F. Marzpour Shalmani; R. Halladj; S. Askari
Source:
RSC advances 2017 v.7 no.43 pp. 26756-26769
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; crystal structure; crystallization; crystals; energy-dispersive X-ray analysis; gels; metal ions; mixing; nanoparticles; nickel; particle size distribution; phosphoric acid; physicochemical properties; scanning electron microscopy; stereochemistry; thermogravimetry; transmission electron microscopy; zinc
Abstract:
... The synthesis of transition metal (Me = Ni and Zn) containing SAPO-34 nanoparticles was conducted by applying insonation as the precrystallization treatment. The effects of synthesis parameters on the properties of SAPO-34 products and their derivatives in terms of the crystallinity, size and morphology of particles, structure and hydroxyl functional groups, and stereochemistry of metal ions were ...
DOI:
10.1039/c7ra00272f

31. Potential continuous removal of toluene by ZnO nanorods grown on permeable alumina tube filters

Author:
Faegheh Ghanbari; Mehdi Eskandari; Pariya Nazari; Saba Gharibzadeh; Saman Kohnehpoushi; Bahram Abdollahi Nejand
Source:
RSC advances 2016 v.6 no.57 pp. 52360-52371
ISSN:
2046-2069
Subject:
X-ray diffraction; absorption; aluminum oxide; atmospheric pressure; crystal structure; crystals; evaporation; filters; irradiation; methylene blue; nanorods; oxidation; photocatalysis; photolysis; relative humidity; scanning electron microscopy; temperature; toluene; ultraviolet radiation; zinc oxide
Abstract:
... Vertical ZnO nanorods were successfully grown on the crystalline surface of an Al₂O₃ microfilter by the simple technique of evaporation of prepared solution at atmospheric pressure (ESAP) for photocatalytic degradation of toluene. The nanorods were grown from evaporated solution at low temperatures of 300, 400, and 500 °C. The crystalline structure and morphology of the deposited films were evalua ...
DOI:
10.1039/c6ra07801j

32. Quantitative analysis of crystallinity in an argyrodite sulfide-based solid electrolyte synthesized via solution processing

Author:
So Yubuchi; Hirofumi Tsukasaki; Atsushi Sakuda; Shigeo Mori; Akitoshi Hayashi; Masahiro Tatsumisago
Source:
RSC advances 2019 v.9 no.25 pp. 14465-14471
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystals; electrolytes; ethanol; heat treatment; quantitative analysis; temperature; tetrahydrofuran; transmission electron microscopes
Abstract:
... Liquid-phase synthesis is a useful technique for preparing argyrodite sulfide-based solid electrolytes, and the synthesis conditions such as heat treatment strongly affect the conductivity. Because the understanding of structural changes reveals crucial information about their properties, it is necessary to evaluate this change during heat treatment to determine the factors that affect the conduct ...
DOI:
10.1039/c9ra00949c

33. Rheology, thermal properties, and foaming behavior of high d-content polylactic acid/cellulose nanofiber composites

Author:
WeiDan Ding; Takashi Kuboki; Anson Wong; Chul B. Park; Mohini Sain
Source:
RSC advances 2015 v.5 no.111 pp. 91544-91557
ISSN:
2046-2069
Subject:
X-ray diffraction; carbon dioxide; cell growth; cellulose; crystal structure; crystallization; crystals; foaming; foams; nanofibers; polylactic acid; rheology; thermal properties; viscosity; wide-angle X-ray scattering
Abstract:
... Amorphous polylactic acid (PLA)/cellulose nanofiber (CNF) composites were prepared using the solution casting method. We investigated the effects of the CNFs on the PLA's rheological and thermal properties and on its foaming behavior. The rheological measurements showed that the incorporated CNFs substantially increased the PLA's viscosity in a low frequency range. This was attributed to both the ...
DOI:
10.1039/c5ra16901a

34. Role of polyethyleneimine as an additive in cyanide-free electrolytes for gold electrodeposition

Author:
Xuefeng Ren; Ying Song; Anmin Liu; Jie Zhang; Peixia Yang; Jinqiu Zhang; Guohui Yuan; Maozhong An; Hannah Osgood; Gang Wu
Source:
RSC advances 2015 v.5 no.79 pp. 64806-64813
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; atomic force microscopy; color; crystal structure; crystals; diffusivity; electrochemistry; electrolytes; gold; microstructure; models; polyethyleneimine
Abstract:
... The influence of polyethyleneimine (PEI) on the electrochemical behavior of cyanide-free electrolytes with 5,5-dimethylhydantoin (DMH) as a complexing agent was investigated using cyclic voltammetry (CV), chronoamperometry, and cathodic polarization measurements. The gold electrodeposition displayed three-dimensional (3-D) progressive nucleation in both the absence and presence of PEI according to ...
DOI:
10.1039/c5ra12217a

35. Self-assembled supramolecular structure of N,N,N′,N′-tetramethylethylenediammonium-bis-(4-nitrophenolate): synthesis, single crystal growth and photo physical properties

Author:
P. Nagapandiselvi; C. Baby; R. Gopalakrishnan
Source:
RSC advances 2014 v.4 no.43 pp. 22350-22358
ISSN:
2046-2069
Subject:
X-ray diffraction; acetonitrile; crystal structure; crystallization; crystals; evaporation; fluorescence; methanol; protonation; solubility; solvents; strength (mechanics); thermal stability
Abstract:
... The synthesis, growth and structure of a novel organic third order nonlinear optical (NLO) crystal namely, N,N,N′,N′-tetramethylethylenediammonium-bis(4-nitrophenolate) (TMEDA4NP) is presented. The solubility of the compound in methanol and acetonitrile solvents is compared and the growth conditions were optimized. Single crystals of TMEDA4NP were grown in acetonitrile solvent using a slow evapora ...
DOI:
10.1039/c4ra02393e

36. Single molecules of terrylene in di-substituted naphthalenes crystallizing in the herringbone pattern

Author:
Magda Białkowska; Wojciech Chaładaj; Irena Deperasińska; Aleksandra Drzewiecka-Antonik; Anna E. Koziol; Artur Makarewicz; Bolesław Kozankiewicz
Source:
RSC advances 2017 v.7 no.5 pp. 2780-2788
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystallization; crystals; deformation; fluorescence; naphthalenes
Abstract:
... 2,3-Dichloronaphthalene (2,3-DCN) and 2,3-dibromonaphthalene (2,3-DBN) were synthesized, purified and used to grow single crystals in the form of thin plates. X-ray crystallographic studies, performed for the first time, showed that molecules in both isostructural crystals are arranged in the herringbone pattern. These crystals, lightly doped with terrylene (Tr), appeared to be very good systems f ...
DOI:
10.1039/c6ra27167g

37. Supramolecular assemblies of 2-hydroxy-3-naphthoic acid and N-heterocycles via various strong hydrogen bonds and weak X⋯π (X = C–H, π) interactions

Author:
Yanyan Pang; Peiqi Xing; Xiujuan Geng; Yujing Zhu; Faqian Liu; Lei Wang
Source:
RSC advances 2015 v.5 no.51 pp. 40912-40923
ISSN:
2046-2069
Subject:
X-ray diffraction; amines; carboxylic acids; crystal structure; crystals; evaporation; hydrogen bonding; piperazine; pyridines; solvents; thermogravimetry
Abstract:
... The analysis of weak interactions, including hydrogen bonds and aromatic stacking interactions, and primary hydrogen bonded synthons in the crystals of 2-hydroxy-3-naphthoic acid with various N-containing cocrystal formers (coformers) is presented. Molecular complexes of 2-hydroxy-3-naphthoic acid with 3-hydroxy pyridine 1, 2-amino-4,6-dimethoxy pyrimidine 2, 2-amino-4,6-dimethyl pyrimidine 3, 1-p ...
DOI:
10.1039/c5ra03837e

38. Surface and interface structural analysis of W deposited on 6H–SiC substrates annealed in argon

Author:
T. T. Thabethe; E. G. Njoroge; T. T. Hlatshwayo; T. P. Ntsoane; J. B. Malherbe
Source:
RSC advances 2016 v.7 no.1 pp. 2-7
ISSN:
2046-2069
Subject:
X-ray diffraction; annealing; argon (noble gases); crystal structure; crystals; films (materials); oxygen; scanning electron microscopy; silica; silicon carbide; spectroscopy; temperature; tungsten oxide
Abstract:
... A study of a tungsten (W) thin film deposited on a single crystalline 6H–SiC substrate and annealed in Ar at temperatures of 700 °C, 800 °C, 900 °C and 1000 °C for 1 hour was conducted. The subsequent solid state reactions, phase composition and surface morphology were investigated by Rutherford backscattering spectrometry (RBS), grazing incidence X-ray diffraction (GIXRD) and scanning electron mi ...
DOI:
10.1039/c6ra24825j

39. Surface crystallization of low thermal expansion Ba₀.₅Sr₀.₅Zn₂Si₂O₇ from an 8 BaO·8 SrO·34 ZnO·50 SiO₂ glass

Author:
Michael Kracker; Liliya Vladislavova; Christian Thieme; Tilman Zscheckel; Katrin Thieme; Thomas Höche; Christian Rüssel
Source:
RSC advances 2017 v.7 no.71 pp. 44834-44842
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystallization; crystals; cutting; differential scanning calorimetry; glass; heat treatment; light microscopy; scanning electron microscopy; silica; thermal expansion; zinc oxide
Abstract:
... Thermal treatment of a glass with the composition 8 BaO·8 SrO·34 ZnO·50 SiO₂ has led to the crystallization of a Ba₁₋ₓSrₓZn₂Si₂O₇ solid solution. This solid solution has a very low or even negative thermal expansion. The glass system possesses a strong tendency towards surface crystallization, while bulk nucleation is negligible. The surface crystallization behavior was characterized using differe ...
DOI:
10.1039/c7ra08587g

40. Synthesis and structure of novel Ag₂Ga₂SiSe₆ crystals: promising materials for dynamic holographic image recording

Author:
O. V. Parasyuk; V. V. Pavlyuk; O. Y. Khyzhun; V. R. Kozer; G. L. Myronchuk; V. P. Sachanyuk; G. S. Dmytriv; A. Krymus; I. V. Kityk; A. M. El-Naggar; A. A. Albassam; M. Piasecki
Source:
RSC advances 2016 v.6 no.93 pp. 90958-90966
ISSN:
2046-2069
Subject:
X-radiation; X-ray diffraction; absorption; crystal structure; crystals; differential thermal analysis; energy; irradiation; lasers; lighting; melting; photosensitivity; temperature
Abstract:
... Phase diagrams of the AgGaSe₂–SiSe₂ system were explored by differential thermal analysis (DTA) and X-ray diffraction (XRD) analysis methods for the first time. It was demonstrated that the investigated system forms quaternary compounds of compositions Ag₂Ga₂SiSe₆ and AgGaSiSe₄. Ag₂Ga₂SiSe₆ melts at 1042 K and exists in two polymorphous modifications. The crystal structure of the low-temperature m ...
DOI:
10.1039/c6ra19558j

41. Synthesis, characterization and corrosion inhibition potential of two novel Schiff bases on mild steel in acidic medium

Author:
Archana Pandey; B. Singh; Chandrabhan Verma; Eno E. Ebenso
Source:
RSC advances 2017 v.7 no.74 pp. 47148-47163
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; corrosion; crystal structure; crystals; dielectric spectroscopy; differential scanning calorimetry; electrochemistry; electron transfer; hardness; hydrochloric acid; nitrophenols; nuclear magnetic resonance spectroscopy; schiff bases; spectral analysis; steel; thermography; ultraviolet-visible spectroscopy
Abstract:
... The present study deals with the synthesis of two novel Schiff bases (SBs) namely; 5-((4-chloro-3-nitrophenylimino)methyl)-2-methoxyphenol (SB-1) and 2-(4-hydroxy-3-methoxybenzylidineamino)-4-nitrophenol (SB-2) using a solid–liquid phase equilibrium diagram and their characterization via¹H and ¹³C NMR, FT-IR and UV-vis spectral analyses. Differential scanning calorimetric (DSC) thermographs were a ...
DOI:
10.1039/c7ra08887f

42. Synthesis, crystal growth and characterization of di-valine maleic – a new nonlinear optical material

Author:
Soma Adhikari; Tanusree Kar; Saikat Kumar Seth
Source:
RSC advances 2016 v.6 no.101 pp. 99139-99148
ISSN:
2046-2069
Subject:
X-ray diffraction; amino acids; aqueous solutions; crystal structure; crystals; energy; evaporation; hardness; hydrogen bonding; physicochemical properties; temperature; urea
Abstract:
... An amino acid salt di-valine maleic (VM) has been synthesized for the first time and single crystals were grown by the controlled evaporation of the aqueous solution at constant temperature (48 ± 0.03) °C. Crystal and molecular structure of VM was determined by single crystal X-ray diffraction analysis. X-ray crystallography reveals that VM possesses different two-dimensional supramolecular networ ...
DOI:
10.1039/c6ra21466e

43. Synthesis, crystal structure and physical properties of [Li₀.₈₅Fe₀.₁₅OH][FeS]

Author:
Xian Zhang; Xiaofang Lai; Na Yi; Jianqiao He; Haijie Chen; Hui Zhang; Jianhua Lin; Fuqiang Huang
Source:
RSC advances 2015 v.5 no.48 pp. 38248-38253
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystallization; crystals; hot water treatment; magnetism; physical properties; scanning electron microscopy; transmission electron microscopy
Abstract:
... The layered mixed anion compound with the formula [Li₀.₈₅Fe₀.₁₅OH][FeS] was synthesized via a facile hydrothermal method. [Li₀.₈₅Fe₀.₁₅OH][FeS], which is determined by single crystal X-ray diffraction and refined by the SHELXTL program, crystallizes in the tetragonal space group of P4/nmm (a = b = 3.6886(3) Å, c = 8.915(1) Å, V = 121.29(2) ų, Z = 2). The structure features alternatively packed an ...
DOI:
10.1039/c5ra04037j

44. Synthesis, crystal structures, and in vitro anticancer properties of new N-heterocyclic carbene (NHC) silver(i)- and gold(i)/(iii)-complexes: a rare example of silver(i)–NHC complex involved in redox transmetallation

Author:
Rosenani A. Haque; Mohammed Z. Ghdhayeb; Srinivasa Budagumpi; Mohamed B. Khadeer Ahamed; Amin M. S. Abdul Majid
Source:
RSC advances 2016 v.6 no.65 pp. 60407-60421
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; antineoplastic activity; carbenes; crystal structure; crystals; deprotonation; geometry; gold; heterocyclic nitrogen compounds; human cell lines; humans; inhibitory concentration 50; ligands; nanogold; neoplasm cells; neoplasms; nuclear magnetic resonance spectroscopy; salts; silver
Abstract:
... A series of cationic, linearly coordinated silver(i)– (4–6) and gold(i)/(iii)–NHC (NHC = N-heterocyclic carbene) (7–9) complexes of (benz)imidazol-2-ylidene ligands was prepared and successfully characterized. Complexes 4–6 were prepared by in situ deprotonation of azolium salts and 7–9 by NHC transfer from their respective silver(i) complexes. All new compounds were characterized by elemental ana ...
DOI:
10.1039/c6ra09788j

45. Synthesis, growth mechanism, optical properties and catalytic activity of ZnO microcrystals obtained via hydrothermal processing

Author:
Edgar Alves Araújo Júnior; Francisco Xavier Nobre; Giancarlo da Silva Sousa; Laécio Santos Cavalcante; Maria Rita de Morais Chaves Santos; Flavio Leandro Souza; José Milton Elias de Matos
Source:
RSC advances 2017 v.7 no.39 pp. 24263-24281
ISSN:
2046-2069
Subject:
Raman spectroscopy; X-ray diffraction; catalysts; cetyltrimethylammonium bromide; crystal structure; crystals; growth models; hot water treatment; methyl orange; microstructure; photocatalysis; photoluminescence; photolysis; reflectance; rhodamines; scanning electron microscopy; temperature; zinc oxide
Abstract:
... In the present study, typical ZnO microcrystals exhibiting the wurtzite hexagonal crystal structure were produced successfully, characterized by a high degree of crystallinity, via hydrothermal processing at 120, 150 and 180 °C, assisted by N-cetyl-N,N,N-trimethylammonium (CTAB). The samples were characterised by XRD, Raman and infrared, FE-SEM, UV-Vis by diffuse reflectance and photoluminescence ...
DOI:
10.1039/c7ra03277c

46. Synthesis, growth, spectral studies, first-order molecular hyperpolarizability and Hirshfeld surface analysis of isonicotinohydrazide single crystals

Author:
V. Meenatchi; SP. Meenakshisundaram
Source:
RSC advances 2015 v.5 no.79 pp. 64180-64191
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; algorithms; crystal structure; crystals; density functional theory; energy; evaporation; geometry; hydrogen bonding; spectral analysis; thermogravimetry; urea
Abstract:
... Single crystals of (E)-N′-((4-fluorophenyl)(phenyl)methylene)isonicotinohydrazide dihydrate were grown by the slow evaporation solution growth technique. The structure was elucidated by single crystal X-ray diffraction analysis and the crystal belongs to the triclinic system with the space group P1̄. The crystallinity of the material was confirmed by powder X-ray diffraction which coincides well w ...
DOI:
10.1039/c5ra08454g

47. Synthesis, intermolecular interactions and biological activities of two new organic–inorganic hybrids C₆H₁₀N₂,2Br and C₆H₁₀N₂,2Cl·H₂O

Author:
Intissar Hamdi; Intidhar Bkhairia; Andreas Roodt; Thierry Roisnel; Moncef Nasri; Houcine Naïli
Source:
RSC advances 2020 v.10 no.10 pp. 5864-5873
ISSN:
2046-2069
Subject:
2,2-diphenyl-1-picrylhydrazyl; Fourier transform infrared spectroscopy; X-ray diffraction; antimicrobial properties; antioxidant activity; antioxidants; beta-carotene; crystal structure; crystallization; crystals; discoloration; evaporation; hydrogen bonding
Abstract:
... A slow evaporation method has permitted the crystallization of two novel crystals of (2-aminomethyl)pyridindiumdihalide C₆H₁₀N₂,2Br (1) and C₆H₁₀N₂,2Cl·H₂O (2). The structures of the prepared compounds (1) and (2) were elucidated by single-crystal X-ray diffraction which revealed that they crystallize, respectively, with triclinic and monoclinic symmetries. Their crystal packing was stabilized by ...
DOI:
10.1039/c9ra09294c

48. Synthesis, structure, characterization and theoretical studies of NLO active furan-2-carbohydrazide monohydrate derivative single crystals

Author:
V. Meenatchi; R. Agilandeshwari; SP. Meenakshisundaram
Source:
RSC advances 2015 v.5 no.87 pp. 71076-71087
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; algorithms; ambient temperature; crystal structure; crystals; density functional theory; energy; ethanol; evaporation; geometry; hydrogen bonding; mass spectrometry; moieties; reflectance; urea
Abstract:
... Single crystals of (E)-N′-(4-isopropylbenzylidene)furan-2-carbohydrazide monohydrate were grown by the slow evaporation solution growth technique from ethanol at room temperature. The crystals belong to the orthorhombic system with noncentrosymmetric space group P2₁2₁2₁. The crystallinity of the material was confirmed by powder X-ray diffraction analysis. The functional groups present in the molec ...
DOI:
10.1039/c5ra07936e

49. Template-free and morphology-controlled hydrothermal growth of single-crystalline Bi₁₂TiO₂₀ with excellent simulated sunlight photocatalytic activity

Author:
Wan Guo; Shengqu Zhang; Yingna Guo; Ling Ma; Fang Su; Yihang Guo; Aifang Geng
Source:
RSC advances 2013 v.3 no.12 pp. 4008-4017
ISSN:
2046-2069
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; crystal structure; crystals; dyes; lighting; methyl orange; nitrates; nitrogen; p-nitrophenol; photocatalysis; photocatalysts; porosimetry; reflectance spectroscopy; scanning electron microscopy; solvents; transmission electron microscopy
Abstract:
... Single-crystalline bismuth titanates (Bi₁₂TiO₂₀) with the cubic phase and various morphologies (flower-, belt-, tetrahedral-like) were controllably fabricated by using a mild template-free hydrothermal process. The samples were fully characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution TEM, nitrogen p ...
DOI:
10.1039/c3ra22592e

50. A family of unsymmetrical hydroxyl-substituted BEDT-TTF donors: syntheses, structures and preliminary thin film studies

Author:
Qiang Wang; Matteo Zecchini; John D. Wallis; Yiliang Wu; Jeremy M. Rawson; Melanie Pilkington
Source:
RSC advances 2015 v.5 no.50 pp. 40205-40218
ISSN:
2046-2069
Subject:
X-ray diffraction; absorption; cations; crystal structure; crystals; films (materials); glass; hydrogen bonding; iodine; moieties; oxidation; polystyrenes; salts; silica
Abstract:
... Three new unsymmetrical hydroxyl-functionalized donors H1–H3 closely related to hydroxymethyl-BEDT-TTF have been synthesised and characterised. Cyclic voltammetry studies showed that the compounds exhibit reversible two one-electron redox processes typical for BEDT-TTF derivatives. X-ray diffraction studies of H1 and H2 reveal π-stacking interactions between pairs of donors that are organized into ...
DOI:
10.1039/c5ra04568a

51. A greener procedure for the synthesis of α-ureidophosphonates under ultrasound irradiation. An X-ray crystallographic study

Author:
Abdeslem Bouzina; Malika Berredjem; Sofiane Bouacida; Hocine Merazig; Nour-eddine Aouf
Source:
RSC advances 2015 v.5 no.121 pp. 99775-99780
ISSN:
2046-2069
Subject:
X-radiation; X-ray diffraction; aldehydes; crystal structure; crystallization; crystals; ethyl ether; hexane; phosphonates; solvents; thiourea; ultrasonic treatment; urea
Abstract:
... An efficient, eco-sustainable and greener procedure for the synthesis of α-ureidophosphonates via a one-pot three-component reaction of aldehydes, urea/thiourea and triethylphosphite or diethylphosphite using ultrasonic irradiation under solvent- and catalyst-free conditions at 75°, is developed. The desired products were obtained in excellent yields within short reaction times (15–30 min). Crysta ...
DOI:
10.1039/c5ra19886k

52. The influence of epitaxial crystallization on the mechanical properties of a high density polyethylene/reduced graphene oxide nanocomposite injection bar

Author:
Guibin Yao; Tianchen Duan; Minfang An; Haojun Xu; Feng Tian; Zongbao Wang
Source:
RSC advances 2017 v.7 no.35 pp. 21918-21925
ISSN:
2046-2069
Subject:
X-ray diffraction; crystal structure; crystallization; crystals; differential scanning calorimetry; graphene oxide; injection molding; mechanical properties; nanocomposites; polyethylene; small-angle X-ray scattering; wide-angle X-ray scattering
Abstract:
... High density polyethylene (HDPE)/reduced graphene oxide (RGO) nanocomposite bars were prepared by injection molding and the effects of RGO on the HDPE matrix were investigated. Differential scanning calorimetry results demonstrated that RGO was an effective nucleation agent for HDPE. Two dimensional wide angle X-ray diffraction (2D WAXD) results showed that the incorporation of RGO enhanced the de ...
DOI:
10.1039/c7ra02742g

53. A new oxygen-rich energetic salt dihydrazine tetranitroethide: a promising explosive alternative with high density and good performance

Author:
Haozheng Mei; Junqing Yang; Wenli Cao; Yong Hu; Piao He; Jian-Guo Zhang
Source:
RSC advances 2020 v.10 no.39 pp. 23250-23253
ISSN:
2046-2069
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; additives; crystal structure; crystals; elemental composition; explosions; explosives; hydrazines; nuclear magnetic resonance spectroscopy; organic salts; oxygen
Abstract:
... A novel high-energy salt with good oxygen balance, dihydrazine tetranitroethide (5), has been synthesized and characterized by FT-IR spectroscopy, NMR spectroscopy, elemental analysis, and X-ray single crystal diffraction. Compound 5 exhibits high crystal density (1.81 g cm⁻³) and impressive detonation velocity (9508 m s⁻¹) and detonation pressure (37.9 GPa), showing potential applications as a hi ...
DOI:
10.1039/d0ra04167j