Trigonal planar CuX(3)-groups in Cu(2)Mo(6)X(14), X=Cl, Br, I

被引:28
|
作者
Peppenhorst, A
Keller, HL
机构
来源
关键词
Dicopper(I)-octa-mu(3)-halogeno-hexahalogeno-octahedro-hexamolybdate(II); crystal structure; Mo(6)X(14)-group; trigonal planar CuX(3)-group; ionic conduction;
D O I
10.1002/zaac.19966220415
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Cu2Mo6Cl14 (I), Cu2Mo6Br14 (II) and Cu2Mo6I14 (III) were synthesized by thermal treatment of corresponding mixtures of copper(I) and molybdenum(II) halides. The crystal structures were determined by single crystal X-ray analyses. I and II show isotypism, cubic, Pn(3) over bar (no. 201, sec. setting), Z = 4, I: a = 12.772(3) Angstrom, II: a = 13.350(2) Angstrom. III shows a new structural type, orthorhombic, Pbca (No. 61), Z = 4, a = 16.058(3) Angstrom, b = 10.643(2) Angstrom, c = 16.963(3) Angstrom. Trigonal planar CuX(3) units were found in I-III. Structural behaviour relations are discussed, especially with regard to ionic conductivity.
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页码:663 / 669
页数:7
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