BaZnBe2(BO3)2F2: a novel zinc-beryllium borate with SBBO-type structure overcoming the polymorphism problem

Ruixin Guo; Xiaomeng Liu; Ce Tao; Changcheng Tang; Mingjun Xia; Lijuan Liu; Zheshuai Lin; Xiaoyang Wang

doi:10.1039/D0DT04153J

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BaZnBe₂(BO₃)₂F₂: a novel zinc-beryllium borate with SBBO-type structure overcoming the polymorphism problem†

Ruixin Guo,

^ab Xiaomeng Liu,^ab Ce Tao,

^ab Changcheng Tang,

^ab Mingjun Xia,

^ab Lijuan Liu,*^ab Zheshuai Lin

^ab and Xiaoyang Wang

^ab

Author affiliations

* Corresponding authors

^a Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
E-mail: llj@mail.ipc.ac.cn

^b Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Abstract

A novel zinc-beryllium borate BaZnBe₂(BO₃)₂F₂ was grown by a high-temperature flux method for the first time. It crystallizes in P [3 with combining macron] with the cell parameters of a = b = 4.5998, c = 7.7037 and Z = 1, which is different from BaMBe₂(BO₃)₂F₂ (M = Mg, Ca). Interestingly, when Zn replaces Mg and Ca in BaMgBe₂(BO₃)₂F₂ and BaCaBe₂(BO₃)₂F₂, the structure retains the same anionic group but the symmetry is lowered. The title compound contains a flexible net structure [Be₃B₃O₆F₃]_∞ in the a–b plane with Ba and Zn atoms located in the interlayers accordingly, which overcomes the structural instability problems of SrBe₂B₂O₇ (SBBO). The structure evolution from SBBO to BaZnBe₂(BO₃)₂F₂ was discussed. This work is of great significance to the discovery of new materials and the modification of existing materials.

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Article information

DOI: https://doi.org/10.1039/D0DT04153J
Article type: Paper
Submitted: 06 Dec 2020
Accepted: 10 Jan 2021
First published: 12 Jan 2021

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Dalton Trans., 2021,50, 2138-2142

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BaZnBe₂(BO₃)₂F₂: a novel zinc-beryllium borate with SBBO-type structure overcoming the polymorphism problem

R. Guo, X. Liu, C. Tao, C. Tang, M. Xia, L. Liu, Z. Lin and X. Wang, Dalton Trans., 2021, 50, 2138 DOI: 10.1039/D0DT04153J

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