Zharchikhite，AlF(OH)2：一种与 α-PbO2 有关的新结构类型。

IF 1.3 3区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Acta crystallographica Section B, Structural science, crystal engineering and materials Pub Date : 2024-02-01 Epub Date: 2024-01-09 DOI:10.1107/S2052520623010491

Natalia V Zubkova, Igor V Pekov, Dmitry A Ksenofontov, Dmitry Yu Pushcharovsky

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引用次数: 0

摘要

本文利用单晶 X 射线衍射法解析了来自 Zharchikhinskoe 矿床（俄罗斯布里亚特）的zharchikhite（AlF(OH)2）的晶体结构。该矿物为单斜晶系，空间群为 P21/c，a = 5.1788 (4)，b = 7.8386 (4)，c = 5.1624 (4) Å，β = 116.276 (10)°，V = 187.91 (3) Å3 和 Z = 4。Zharchikhite 显示了一种与 α-PbO2 结构类型大致相关的新结构类型，与 Al-F-OH 系统的其他化合物不同。zharchikhite 的晶体结构以八面体假框架为基础，该假框架由共享边缘的 AlF2(OH)4 八面体人字链构建而成；相邻的八面体链通过 F 顶点相连，假框架包含宽通道。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Zharchikhite, AlF(OH)2: a novel structure type related to α-PbO2.

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Zharchikhite, AlF(OH)₂: a novel structure type related to α-PbO₂.

The crystal structure of zharchikhite, AlF(OH)₂, from the Zharchikhinskoe deposit (Buryatia, Russia) is solved here using single-crystal X-ray diffraction. The mineral is monoclinic, space group P2₁/c, a = 5.1788 (4), b = 7.8386 (4), c = 5.1624 (4) Å, β = 116.276 (10)°, V = 187.91 (3) Å³ and Z = 4. Zharchikhite demonstrates a novel structure type roughly related to the α-PbO₂ structure type and different from other compounds of the Al-F-OH system. The crystal structure of zharchikhite is based on the octahedral pseudoframework built from zigzag chains of edge-sharing AlF₂(OH)₄ octahedra; adjacent chains are linked via F vertices and the pseudoframework contains wide channels.

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来源期刊

Acta crystallographica Section B, Structural science, crystal engineering and materials CHEMISTRY, MULTIDISCIPLINARYCRYSTALLOGRAPH-CRYSTALLOGRAPHY

CiteScore

3.60

自引率

5.30%

发文量

期刊介绍： Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials publishes scientific articles related to the structural science of compounds and materials in the widest sense. Knowledge of the arrangements of atoms, including their temporal variations and dependencies on temperature and pressure, is often the key to understanding physical and chemical phenomena and is crucial for the design of new materials and supramolecular devices. Acta Crystallographica B is the forum for the publication of such contributions. Scientific developments based on experimental studies as well as those based on theoretical approaches, including crystal-structure prediction, structure-property relations and the use of databases of crystal structures, are published.