Synthesis, X-ray and optical characterizations of two new oxysulfides:: LaInS2O and La5In3S9O3

被引：16

作者：

Kabbour, H ^{[1
]}

Cario, L ^{[1
]}

Moëlo, Y ^{[1
]}

Meerschaut, A ^{[1
]}

机构：

[1] Univ Nantes, Chim Solide Lab, Inst Mat Jean Rouxel, UMR 6502,CNRS, F-44322 Nantes 03, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 4-5期

关键词：

oxysulfide; indium; lanthanum; crystal structure; optical properties;

D O I：

10.1016/j.jssc.2003.10.012

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new compounds, LaInS2O and La5In3S9O3 were synthesized in the La-In-S-O quaternary system. Both compounds crystallize in the orthorhombic system with lattice constants a = 20.5421(6) Angstrom, b = 14.8490(4) Angstrom, c = 3.9829(1) Angstrom for LaInS2O, and a = 4.1018(1) Angstrom, b = 26.833(1) Angstrom, c = 16.023(1) Angstrom for La5In3S9O3. The structure of La5In3S9O3 was solved from single-crystal X-ray data, in the space group Pbcm, with Z = 4: it is built from three-atom-thick (100)(NaCl) layers interleaved with fluorite-type ribbons, and is closely related to the structures of the known lanthanum and indium compounds La10In6S17O6 and La4In5S13. Both compounds LaInS2O and La5In3S9O3 exhibit a yellow color; measurement of their optical gaps gave 2.73 and 2.60 eV, respectively. (C) 2003 Elsevier Inc. All rights reserved.

引用

页码：1053 / 1059

页数：7

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