Hybrid Chloroantimonates(III): Thermally Induced Triple‐Mode Reversible Luminescent Switching and Laser‐Printable Rewritable Luminescent Paper

Two hybrid chloroantimonates(III), [Bzmim]3SbCl6 (1, Bzmim=1‐benzyl‐3‐methylimidazolium, Tm1=410 K) and [Bzmim]2SbCl5 (2, Tm2=348 K) are presented. 1 exhibits green emission (quantum efficiency of 87.5 %); 2 exhibits blue and red emissions under the irradiation of 310 and 396 nm light, respectively....

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2019-07, Vol.58 (29), p.9974-9978
Main Authors: Wang, Zeping, Zhang, Zhizhuan, Tao, Luqi, Shen, Nannan, Hu, Bing, Gong, Liaokuo, Li, Jianrong, Chen, Xianping, Huang, Xiaoying
Format: Article
Language:English
Subjects:
anti-counterfeiting
antimony
Crystallization
Emissions
Ionic liquids
Irradiation
photoluminescent switching
Quantum efficiency
reversible structural transformation
Switching
thermal writing
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Summary:Two hybrid chloroantimonates(III), [Bzmim]3SbCl6 (1, Bzmim=1‐benzyl‐3‐methylimidazolium, Tm1=410 K) and [Bzmim]2SbCl5 (2, Tm2=348 K) are presented. 1 exhibits green emission (quantum efficiency of 87.5 %); 2 exhibits blue and red emissions under the irradiation of 310 and 396 nm light, respectively. Using different cooling methods, crystalline 1 and IL@2 (IL=ionic liquid of [Bzmim]Cl) could be generated from the molten 1. Reversible structural and PL transformation triggered by moisture or heat was observed between 1 and IL@2. Such PL switching, combined with the crystallization‐induced PL properties of 1 and 2, resulted in the firstly reported triple‐mode reversible PL switching, that is, on–off (T>Tm1), color switching (T
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201903945