New structure type in the morphotropic series of A2+M22+(MoO4)3:: Crystal structure of Rb2Cu2(MoO4)3

被引：34

作者：

Solodovnikov, SF ^{[1
]}

Solodovnikova, ZA ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Inorgan Chem, Siberian Branch, Novosibirsk, Russia

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 1997年 / 38卷 / 05期

关键词：

D O I：

10.1007/BF02763890

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Isostructural compounds A(2)Cu(2)(MoO4)(3) (A = Rb, Cs) were synthesized. The new structure type of the compounds was established for the rubidium-containing compound as an example (a = 27.698, b = 5.102, c = 19.292 Angstrom, beta = 107.26 degrees, Z = 8, space group C2/c, R = 0016). The structure is characterized by pairs of infinite wolframite-like ribbons of CuO(4+2) octahedra stretching along [010] and additionally bridged by MoO4 tetrahedra. The tetrahedra located between the ribbons weakly interact with each other at distances Mo-O of 2.545 and 2.853 Angstrom. There are four such quasione-dimensional copper-molybdenum-oxygen radicals per unit cell; the radicals are united into a single structure by rubidium ions having coordination numbers (CN) 9 and 10.

引用

页码：765 / 771

页数：7

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