Affiliation:
1. State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter The Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China
2. Key Laboratory of Optoelectronic Technology & Systems Education Ministry of China Chongqing University and State Key Laboratory of Power Transmission Equipment and System Security Chongqing University Chongqing 400044 P. R. China
3. College of Chemistry and Materials Science Fujian Normal University Fuzhou Fujian 350002 P. R. China
4. University of Chinese Academy of Sciences Beijing 100049 P. R. China
Abstract
AbstractTwo 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<Tm2), and on–off–on (Tm2<T<Tm1). Furthermore, ink‐ and mask‐free laser‐printable rewritable PL paper was achieved. This study demonstrates the promise of dynamic insertion/extraction of ILs in hybrid chloroantimonates for anti‐counterfeiting and rewritable PL paper.
Funder
National Natural Science Foundation of China
Cited by
237 articles.
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