Cs4Au7Sn2:: a gold tin framework structure with Au7 clusters and Sn2 dumb-bells

被引：0
|
作者：
Zachwieja, U
Wlodarski, J
机构：
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1998年 / 624卷 / 09期
关键词：
caesium auride stannide; synthesis; crystal structure; gold cluster;
D O I：
10.1002/(SICI)1521-3749(199809)624:9<1443::AID-ZAAC1443>3.3.CO;2-2
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Silver coloured, brittle single crystals of Cs4Au7Sn2 were synthesized by reaction of caesium azide with gold sponge and tin powder at T = 920 K. The structure of the compound (space group R (3) over bar m, Z = 3, a = 6.844(1) Angstrom, c = 29.233(5) Angstrom) was determined from X-ray single-crystal diffractometry data. Gold and tin form a framework structure that consists of interconnected [Au-7] clusters and Sn-2 dumb-bells. The caesium atoms accupy channel-like cavities within the gold tin partial structure.
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收藏
页码：1443 / 1446
页数：4
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