Na2Cu+[Cu2+3O](AsO4)2Cl and Cu3[Cu3O]2(PO4)4Cl2: two new structure types based upon chains of oxocentered tetrahedra

IF 0.9 4区材料科学 Q3 CRYSTALLOGRAPHY Zeitschrift Fur Kristallographie-Crystalline Materials Pub Date : 2022-08-12 DOI:10.1515/zkri-2022-0046

I. V. Kornyakov, S. Krivovichev

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引用次数: 1

Abstract

Abstract Single crystals of Na2Cu+[Cu2+3O](AsO4)2Cl (1) and Cu3[Cu3O]2(PO4)4Cl2 (2) were prepared by chemical vapor transport reactions. Both crystal structures are based upon the same [O2Cu6]8+ chains formed by corner-sharing (OCu4)6+ tetrahedra and interconnected by (TO4)3− (T = P, As) tetrahedra into porous {[OCu3](TO4)2Cl}3− frameworks. The channels within the frameworks are occupied by Na+, Cu+ and Cl− ions in the crystal structure of 1, whereas the channels in the structure of 2 contain edge-sharing CuO4Cl tetragonal pyramids. Both compounds are structurally related to the previously described synthetic Na2Cu+[Cu2+3O](PO4)2Cl and NaCu2+[Cu2+3O](PO4)2Cl. The compound 2 is structurally and chemically related to yaroshevskite, Cu3[Cu3O]2(VO4)4Cl2, a mineral discovered in volcanic fumaroles, but the two structure types are drastically different. The crystal chemical analysis of the title and related compounds allows to recognize a family of at least four compounds based upon {[OCu3](TO4)2Cl}3− frameworks with channels occupied by different chemical constituents.

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Na2Cu+[Cu2+ 30o](AsO4)2Cl和Cu3[cu30o]2(PO4)4Cl2:基于氧中心四面体链的两种新结构类型

摘要采用化学气相传递反应制备了Na2Cu+[Cu2+ 30o](AsO4)2Cl(1)和Cu3[cu30o]2(PO4)4Cl2(2)单晶。这两种晶体结构都是基于相同的[O2Cu6]8+链，由共享角(OCu4)6+四面体形成，并由(TO4)3−(T = P, As)四面体连接成多孔的{[OCu3](TO4)2Cl}3−框架。在1晶体结构中，框架内的通道由Na+、Cu+和Cl−离子占据，而在2晶体结构中，框架内的通道含有共享边的CuO4Cl四方金字塔。这两种化合物在结构上与前面描述的合成Na2Cu+[Cu2+ 30o](PO4)2Cl和naacu2 +[Cu2+ 30o](PO4)2Cl相关。化合物2在结构和化学上与亚罗什夫钛矿Cu3[cu30]2(VO4)4Cl2相似，这是一种在火山喷气孔中发现的矿物，但两者的结构类型截然不同。对标题和相关化合物的晶体化学分析允许识别基于{[OCu3](TO4)2Cl}3−框架的至少四个化合物家族，其通道被不同的化学成分占据。

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来源期刊

Zeitschrift Fur Kristallographie-Crystalline Materials CRYSTALLOGRAPHY-

CiteScore

2.00

自引率

16.70%

发文量

期刊介绍： Zeitschrift für Kristallographie – Crystalline Materials was founded in 1877 by Paul von Groth and is today one of the world’s oldest scientific journals. It offers a place for researchers to present results of their theoretical experimental crystallographic studies. The journal presents significant results on structures and on properties of organic/inorganic substances with crystalline character, periodically ordered, modulated or quasicrystalline on static and dynamic phenomena applying the various methods of diffraction, spectroscopy and microscopy.