La2SiS5

被引：6

作者：

Daszkiewicz, M.

Gulay, L. D.

Ruda, I. R.

Marchuk, O. V.

Pietraszko, A.

机构：

[1] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[2] Volyn State Univ, Dept Ecol & Protect Environm, UA-43009 Lutsk, Ukraine

[3] Volyn State Univ, Dept Phys & Colloidal Chem, UA-43009 Lutsk, Ukraine

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2007年 / 63卷

关键词：

D O I：

10.1107/S1600536807058606

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The lattice parameters and space group for dicerium pentathiosilicate, La2SiS5, have been reported previously [Michelet, Perez, Etienne & Darriet-Duale (1970.) C. R. Seances Acad. Sci. Ser. C 271, 513-515]. Moreover, isotypism with the La2GeS5 structure ( space group P2(1)/c) has been assigned, but a structure refinement was not performed. The present single-crystal study reveals that the two independent La atoms are surrounded by 8 and 9 S atoms, forming bi- and tricapped trigonal prisms, respectively, whereas the Si atom has a slightly distorted tetrahedral coordination. The capped trigonal prisms are linked to tetrahedra via corners and edges; they are also connected to each other by sharing faces.

引用

页码：I197 / I198

页数：8