The crystal structure of Cu2.31TeS0.32 - a condensed cluster compound
The crystal structure of Cu2.31TeS0.32 - a condensed cluster compound
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Cu2.31TeS0.32的晶体结构——稠合簇化合物
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
S. Karup
中科院分区：
文献类型：
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作者：
E. Makovicky;I. Søtofte;S. Karup
确定了在675°C下制备的固溶体系列Cu61.3Te18.3S20.5 -Cu61.9Te35.7S2.36的贫硫成员Cu2.31TeS0.32的晶体结构，并从单晶衍射仪X射线数据（R = 0.044）进行了细化。淬灭的统计立方结构（a = 14.836（4）π，空间群F4132）在室温下由两个相互贯穿的二十面体碲笼的四面体框架组成，笼中包围着以额外的完全占据的中心铜位为中心的半占据铜位的二十面体簇。在一个子集中，统计上占据的硫四面体发生在碲笼，集中在这个中央Cu网站。Cu2.31TeS0.32结构是Cr 3Si（结构类型A13）的填充衍生物，与Cu9.1TeSb3、Ag 8 GeTe 6族和一些金属簇合物的结构，特别是[Cu 26 Se 13（PEt 2 Ph）14]和[Au 13 Cl 2（PMe 2 Ph）10]的结构具有相似性。
The crystal structure of Cu2.31TeS0.32, a sulfur-poor member of the solid solution series Cu61.3Te18.3S20.5 - Cu61.9Te35.7S2.36 prepared at 675°C, was determined and refined from single-crystal diffractometer X-ray data (R = 0.044). The quenched statistical cubic structure (a = 14.836(4)Å, space group F4132) consists at room temperature of two interpenetrating tetrahedral frameworks of icosahedral tellurium cages which enclose icosahedral clusters of half-occupied Cu positions centred by additional, fully occupied central copper sites. In one subset, statistically occupied sulfur tetrahedra occur in the tellurium cages, centred on this central Cu site. The Cu2.31TeS0.32 structure is a stuffed derivative of Cr3Si (structure type A13) and shows affinities to the structures of Cu9.1TeSb3, the Ag8GeTe6 family and some metal clusters, especially [Cu26Se13(PEt2Ph)14] and [Au13Cl2(PMe2Ph)10].