An unprecedented hexagonal double perovskite organic–inorganic hybrid ferroelastic material: (piperidinium)2[KBiCl6]

Qian-Ru Meng; Wei-Jian Xu; Wang-Hua Hu; Hui Ye; Xiao-Xian Chen; Wei Yuan; Wei-Xiong Zhang; Xiao-Ming Chen

doi:10.1039/D1CC02085D

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An unprecedented hexagonal double perovskite organic–inorganic hybrid ferroelastic material: (piperidinium)₂[KBiCl₆]†

Qian-Ru Meng,^a Wei-Jian Xu,^ab Wang-Hua Hu,^a Hui Ye,^a Xiao-Xian Chen,^a Wei Yuan,^a Wei-Xiong Zhang

*^a and Xiao-Ming Chen^a

Author affiliations

* Corresponding authors

^a MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
E-mail: zhangwx6@mail.sysu.edu.cn

^b Department of Chemistry & CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-193, Portugal

Abstract

An unprecedented A₂M^IM^IIIX₆-type double perovskite adopting a fully hexagonal BaNiO₃-type structure, (piperidinium)₂[KBiCl₆], undergoes a 2/mF [1 with combining macron] ferroelastic phase transition at 285 K with a spontaneous strain of 0.0615, arising from the order–disorder transition of organic cations together with the synchronous displacement of inorganic chains.

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Article information

DOI: https://doi.org/10.1039/D1CC02085D
Article type: Communication
Submitted: 19 Apr 2021
Accepted: 22 May 2021
First published: 24 May 2021

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Chem. Commun., 2021,57, 6292-6295

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An unprecedented hexagonal double perovskite organic–inorganic hybrid ferroelastic material: (piperidinium)₂[KBiCl₆]

Q. Meng, W. Xu, W. Hu, H. Ye, X. Chen, W. Yuan, W. Zhang and X. Chen, Chem. Commun., 2021, 57, 6292 DOI: 10.1039/D1CC02085D

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