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Crystal structure of new selenosilicates Pb1.75M0.5SiSe4 (M=Cu and Ag)
被引:3
|作者:
Gulay, LD
Huch, MR
Wolcyrz, M
Olekseyuk, ID
机构:
[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
[2] Volyn State Univ, Dept Gen & Inorgan Chem, UA-43009 Lutsk, Ukraine
关键词:
chalcogenides;
Ph compounds;
Cu compounds;
Ag compounds;
Si compounds;
Se compounds;
crystal structure;
X-ray powder diffraction;
D O I:
10.1016/j.jallcom.2005.04.172
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The crystal structure of new selenosilicates Pb1.75M0.5SiSe4 (M = Cu and Ag) was investigated using X-ray powder diffraction (space group I43d, Pearson symbol cI116: a = 1.4345(1) nm for Pb1.75Cu0.5SiSe4; a = 1.44995(2) nm for Pb1.75Ag0.5SiSe4). The structure consists of isolated [SiSe4](4-) tetrahedra and contains three different sites for metal counter-cations. The structure arrangement is similar to those of alpha-Pb2GeS4 and Tl3VS4. (c) 2005 Elsevier B.V. All rights reserved.
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页码:115 / 117
页数:3
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