From BiF3 to BiF3·H2O: diverse Bi(III) coordination for structural transformation and birefringence regulation

Xian Liu; Can Yang; Qi Wu; Juan Sun; Fei Liang

doi:10.1039/D0CE01213K

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From BiF₃ to BiF₃·H₂O: diverse Bi(iii) coordination for structural transformation and birefringence regulation†

Xian Liu,^a Can Yang,^a Qi Wu,

*^a Juan Sun^a and Fei Liang*^b

Author affiliations

* Corresponding authors

^a Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, P. R. China
E-mail: wuqi2011@whu.edu.cn

^b State key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, P. R. China
E-mail: liangfei@sdu.edu.cn

Abstract

Lone pair activity is an important factor to regulate the crystal structure symmetry and related optical response. Herein, a new type of hydrated bismuth fluoride, BiF₃·H₂O, was synthesized and characterized by a facile hydrothermal reaction. Obviously, the introduction of a water molecule significantly changed the coordination environment of Bi³⁺, thereby seriously changing the crystal structure of the compound BiF₃. Compared with asymmetric BiF_m fundamental building blocks in other compounds, BiF₃·H₂O possesses unprecedented near-isotropic BiF₉ polyhedra and exhibits regulated birefringence values. Therefore, this work will contribute to the structural diversity of Bi_mF_n-based compounds and explore the development of new birefringent crystals.

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Article information

DOI: https://doi.org/10.1039/D0CE01213K
Article type: Paper
Submitted: 20 Aug 2020
Accepted: 08 Sep 2020
First published: 08 Sep 2020

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CrystEngComm, 2020,22, 6838-6846

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From BiF₃ to BiF₃·H₂O: diverse Bi(III) coordination for structural transformation and birefringence regulation

X. Liu, C. Yang, Q. Wu, J. Sun and F. Liang, CrystEngComm, 2020, 22, 6838 DOI: 10.1039/D0CE01213K

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