Synthesis and characterization of oligomeric and polymeric silver-imidazol-2-ylidene iodide complexes

被引：114

作者：

Chen, WZ ^{[1
]}

Liu, FH ^{[1
]}

机构：

[1] Inst Coordinat Chem, Dept Chem, Nanjing 210093, Peoples R China

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2003年 / 673卷 / 1-2期

关键词：

imidazol-2-ylidenes; silver complexes; silver-silver interaction; coordination polymer; X-ray diffraction;

D O I：

10.1016/S0022-328X(03)00153-0

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of N,N'-dimethylimidazolium iodide with Ag2O in CH2Cl2 leads to the coordination polymer [Ag(carbene)(2)](2)[Ag4I6] (2), which consists of the cation [Ag(carbene)(2)](+) and anionic infinite one-dimensional [Ag4I6](2-) chain. The cations and anionic chains are connected into two-dimensional network structure. Treatment of N-allyl-N'-methylimidazolium iodide with Ag2O yielded a tetranuclear N-heterocyclic carbene silver complex [Ag(carbene)(2)](2)[Ag2I4] (3). The polymeric [Ag(carbene)][AgI2] (4) was isolated when the tetranuclear complex 3 was heated at 80degreesC. The monocarbene complex 4 adopts infinite one-dimensional ribbon stair structure in which the silver atoms are held together by multiple iodide bridges and weak Ag...Ag interaction. The compounds have been fully characterized by elemental analysis, NMR spectroscopy, and X-ray crystallography. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：5 / 12

页数：8

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