Synthesis and structure of a new quinary sulfide halide: LaCa2GeS4Cl3

被引：42

作者：

Gitzendanner, RL ^{[1
]}

DiSalvo, FJ ^{[1
]}

机构：

[1] CORNELL UNIV,DEPT CHEM,ITHACA,NY 14853

来源：

INORGANIC CHEMISTRY | 1996年 / 35卷 / 09期

关键词：

D O I：

10.1021/ic951184z

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new quinary rare earth sulfide-halide compound has been synthesized and its structure determined by single crystal X-ray diffraction. LaCa2GeS4Cl3 crystallizes in the noncentrosymmetric hexagonal space group C-6 upsilon(4)-P6(3)mc (No. 186) with Z = 2, a = 9.731(1) Angstrom, and c = 6.337(1) Angstrom. Lanthanum and calcium are mixed on a pseudo-trigonal prismatic site, coordinated to three sulfur atoms on one triangular face and three chlorine atoms on the other. Isolated, slightly distorted tetrahedra of GeS4 are oriented with a tetrahedral 3-fold axis aligned along the crystallographic 3-fold rotation axis. Preliminary optical studies indicate that this material has a useful optical window extending approximately from 0.5 to 10 mu m. Nonlinear optical activity of LaCa2GeS4Cl3 is demonstrated by the generation of green light when pumped with a 1.064 mu m Nd:YAG laser.

引用

页码：2623 / 2626

页数：4

共 18 条

[1] LEAST-SQUARES ABSOLUTE-STRUCTURE REFINEMENT - PRACTICAL EXPERIENCE AND ANCILLARY CALCULATIONS [J].