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Spontaneous formation and reversible transformation between achiral J- and chiral H-aggregates of cyanine dye MTC
- Guan, Ai-Jiao, Zhang, Jing-Tao, Wang, Li-Xia, Cui, Jie, Xiang, Jun-Feng, Sun, Xin, Chen, Kuo, Li, Qian, Tang, Ya-Lin
- RSC advances 2019 v.9 no.20 pp. 11365-11368
- dyes, optical isomerism, temperature
- Chirality at a supramolecular level is currently attracting great attention attributed to rapid developments in supramolecular chemistry. Herein, we report a new type of chiral self-assembly based on the cyanine dye MTC. The chiral H-aggregates of MTC could form spontaneously from achiral J-aggregates, and could return back to achiral J-aggregates in high concentration on increasing the solution temperature.