Synthesis, properties, and crystal structure of Cu3Mo8O23X2 (X = Cl, Br, I)

被引：0

作者：

Steiner, U

Reichelt, W

Böttcher, P

Däbritz, S

机构：

[1] Tech Univ Dresden, Inst Anorgan Chem, D-01069 Dresden, Germany

[2] Tech Univ Dresden, Inst Oberflachen & Mikrostrukturphys, D-01069 Dresden, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1999年 / 625卷 / 01期

关键词：

copper molybdenum oxide halide; chemical transport; crystal structure;

D O I：

10.1002/(SICI)1521-3749(199901)625:1<160::AID-ZAAC160>3.0.CO;2-S

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Single crystals of the Cu3Mo8O23X2 compounds were grown by chemical transport reactions at the lower temperature of a gradient 873-823 K without extra transport agent (auto transport). As DTA/TG measurements indicate, the gaseous compounds, necessary for chemical transport reactions, are formed by partial decomposition of Cu3Mo8O23X2 at 873 K. Cu3Mo8O23Br2 crystallizes with the orthorombic space group Pbcm (a = 4.021(1), b = 22.978(2), c = 21.673(2) Angstrom, Z = 4). The crystal structure consists of pentagonal columns (1)(infinity)[Mo6O7O20/2] linked by additional MoO6/2 octahedra. All the polyhedra(pentagonal bipyramide, octahedra) are distorted. Infinite chains (1)(infinity)[Cu3Br2] along [100] are arranged in tunnels with s-like square shape, left open by the pentagonal columns. Cu3Mo8O23Cl2 (a=4.010(1), b= 22.942(2), c = 21.639(2) Angstrom) and Cu3Mo8O23I2 (a = 4.052(1), b = 23.075(2), c = 21.719(2) Angstrom) are isotypic.

引用

页码：160 / 166

页数：7

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