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A stable 3D Cd(ii) metal–organic framework for highly sensitive detection of Cu²⁺ ions and nitroaromatic explosives
- Du, Jian-Long, Gao, Ju-Ping, Li, Chao-Ping, Zhang, Xiao-Ying, Hou, Jin-Xin, Jing, Xu, Mu, Ya-Juan, Li, Li-Jun
- RSC advances 2017 v.7 no.78 pp. 49618-49625
- aqueous solutions, cadmium, carboxylic acids, coordination polymers, copper, explosives, fluorescence, ions, nitroaromatic compounds
- A Cd(ii) coordination polymer, [Cd₃(L)₂(H₂O)₅]·(H₂O)₄ (1) (H₃L = 9-(4-carboxy-phenyl)-9H-carbazoly-3,6-dicarboxylic acid) has been synthesized solvothermally. Compound 1 exhibits excellent luminescence and good stability in aqueous and DMF solution. In particular, 1 can detect Cu²⁺ ions through fluorescence quenching in aqueous solution. In addition, 1 also shows a highly sensitive response to some nitroaromatic compounds (NACs) in DMF solution. Thus, 1 can serve as a promising luminescent sensor for detecting Cu²⁺ ions and NACs.