Crystalline-Phase-Recognition-Induced Domino Phase Transition and Luminescence Switching for Advanced Information Encryption.

Zhang, Zhizhuan; Lin, Yangpeng; Jin, Jiance; Gong, Liaokuo; Peng, Yingchen; Song, Ying; Shen, Nannan; Wang, Zeping; Du, Kezhao; Huang, Xiaoying

Zhang, Zhizhuan; Lin, Yangpeng; Jin, Jiance; Gong, Liaokuo; Peng, Yingchen; Song, Ying; Shen, Nannan; Wang, Zeping; Du, Kezhao; Huang, Xiaoying.

Afiliación

Zhang Z; 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.
Lin Y; College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, Fujian, 350007, P. R. China.
Jin J; College of Chemistry and Materials Science, Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, Fujian, 350007, P. R. China.
Gong L; 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.
Peng Y; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Song Y; 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.
Shen N; 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.
Wang Z; University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
Du K; College of Chemistry and Materials, Nanning Normal University, Nanning, Guangxi, 530001, P. R. China.
Huang X; 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.

Angew Chem Int Ed Engl ; 60(43): 23373-23379, 2021 Oct 18.

Article en En | MEDLINE | ID: mdl-34402142

ABSTRACT

ABSTRACT

Herein, a new mechanism, namely, crystalline phase recognition (CPR), is proposed for the single-crystal-to-single-crystal (SCSC) transition of metal halides. Chiral ß-[Bmmim]2 SbCl5 (Bmmim=1-butyl-2,3-methylimidazolium) can recognize achiral α-[Bmmim]2 SbCl5 on the basis of a key-lock feature through intercontact of their single crystals, resulting in a domino phase transition (DPT). The concomitant photoluminescence (PL) switching enables observation of the DPT in situ. The liquid eutectic interface, stress-strain transfer, and feasible thermodynamics are key issues for the CPR. DFT calculations and PL measurements revealed that the optical absorption and emission of the isomers mainly originate from [SbCl5 ]2- anions. The structural effects (e.g., supramolecular interactions and [SbCl5 ]2- distortion) on the optical emission are clarified. As a novel type of stimuli response, the CPR-induced DPT and luminescence switching exhibit potential for application in advanced time-resolved information encryption.

Palabras clave

domino phase transitions; encryption; molecular recognition; photoluminescence switching; reversible structural transformations

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