Syntheses and crystal structures of the Ag-S cluster compounds [Ag70S20(SPh)28(dppm)10] (CF3CO2)2 and [Ag262S100(StBu)62(dppb)6]

被引：118

作者：

Fenske, D

Persau, C

Dehnen, S

Anson, CE

机构：

[1] Univ Karlsruhe, Inst Anorgan Chem, D-76128 Karlsruhe, Germany

[2] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 03期

关键词：

cluster compounds; nanoparticles; silver; structure elucidation; sulfur;

D O I：

10.1002/anie.200352351

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

With a maximum diameter of 3.7 nm, [Ag262S 100(StBu)62(dppb)6] (dppb = 1,4-bis(diphenylphosphanyl)butane) is the largest structurally characterized metal chalcogenide cluster (see picture, P green, S yellow and red, Ag blue). The Ag-S substructure has a relationship to structural characteristics observed in binary Ag2S phases: tetrahedral AgS4 and AgS 3P units are linked by trigonal planar AgS3 and approximately linear AgS2 units. While the cluster periphery is well ordered, the Ag and S atomic sites in the center of the cluster are disordered. This observation is in accordance with macroscopic properties of Ag 2S.

引用

页码：305 / 309

页数：5

共 42 条

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