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ChemInform Abstract: Glass Formation in the System BaS-Ga2S3-GeS2 and the Structure of Ba2. 7Ga5.4Ge3.6S18

ChemInform Abstract: Glass Formation in the System BaS-Ga2S3-GeS2 and the Structure of Ba2. 7Ga5.4Ge3.6S18

Authors :
H. Haeuseler
Ch. Schmidt
Source :
ChemInform. 25
Publication Year :
2010
Publisher :
Wiley, 2010.

Abstract

The title system has been investigated by X-ray powder diffraction methods on samples tempered at 1300, 1100 and 900 K. A large temperature-dependent area is found in which the samples form glasses. A new crystalline compound of composition Ba2.7Ga5.4Ge3.6S18 has been found, crystallizing trigonally in space group R3 with a = 9.600 A and c = 8.684 A . The crystal structure of this compound has been determined from single-crystal X-ray diffraction data and refined to R = 0.101 (Rw = 0.13). Ba and S together form a distorted c.c.p. array in which Ga and Ge occupy tetrahedral sites.

Details

ISSN :
09317597
Volume :
25
Database :
OpenAIRE
Journal :
ChemInform
Accession number :
edsair.doi...........a70c82843be3f2e51a394594e731c8dd
Full Text :
https://doi.org/10.1002/chin.199425001