Ba3Ga2O5Cl2的合成、手性晶体结构及磁性能。

IF 1.3 3区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Acta crystallographica Section B, Structural science, crystal engineering and materials Pub Date : 2022-08-01 Epub Date: 2022-07-05 DOI:10.1107/S2052520622004723

Jeremy Rine, Yongqi Yang, Zhixue Shu, Jianda Zhao, Weiwei Xie, Tai Kong

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引用次数: 0

摘要

采用固相反应在空气中合成了与Ba3Fe2O5Cl2同构的Ba3Ga2O5Cl2化合物。通过单晶和粉末x射线衍射分析，确定晶体结构为立方结构，手性空间群为I213，单胞参数a = 9.928 (1) Å。Ba3Ga2O5Cl2中的Ga3+离子与O原子配位形成高四四面体。十个相邻的高四四面体通过角共享和沿体对角线旋转进一步桥接，产生手性结构。磁化测量结果显示了与温度无关的抗磁性行为，这在质量上与所有组成元素的磁芯抗磁性一致。

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Synthesis, chiral crystal structure, and magnetic properties of Ba₃Ga₂O₅Cl₂.

A new compound, Ba₃Ga₂O₅Cl₂, isostructural with Ba₃Fe₂O₅Cl₂, was synthesized by solid-state reaction in air. Through single-crystal and powder X-ray diffraction analysis, the crystal structure was determined to be cubic with chiral space group I2₁3 and unit-cell parameter a = 9.928 (1) Å. The Ga³⁺ ions in Ba₃Ga₂O₅Cl₂ are coordinated by O atoms and form GaO₄ tetrahedra. Ten neighboring GaO₄ tetrahedra are further bridged through corner sharing and rotation along the body diagonal, producing the chiral structure. Magnetization measurements indicate temperature-independent diamagnetic behavior, which is qualitatively consistent with core diamagnetism from all the constituent elements.

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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.