BaAg2S2, a thioargentate with the CaAl2Si2-type structure

被引：18
|
作者：
Bronger, W
Lenders, B
Huster, J
机构：
[1] Inst. fur Anorganische Chem. der TH, Aachen
[2] Inst. Anorganische Chemie der RWTH, D-52056 Aachen
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1997年 / 623卷 / 09期
关键词：
ternary metal sulfides; silver compounds; crystal structure;
D O I：
10.1002/zaac.19976230906
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
BaAg2S2 could be obtained as crystalline powder by the reaction of barium-bis[dicyanoargentate(I)] in a stream of hydrogensulfid at 500 degrees C. Single crystals grew at 480 degrees C in an evacuated glass ampoule filled with a flux of potassium thiocyanate and powdery BaAg2S2 as solid. BaAg2S2 crystallises in the trigonal CaAl2Si2-typ structure, a = 4.386(1) Angstrom, c = 7.194(2) Angstrom, space group P3m1, Z = 1. The structure was determined from four-circle diffractometer data. The silver-sulphur distances are discussed with respect to the corresponding distances of the hitherto known alkaline earth-transition metal pnictides, also crystallizing in the CaAl2Si2-typ structure.
引用
收藏
页码：1357 / 1360
页数：4
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