Synthesis and Structure of Silver and Rhodium 1,2,3-Triazol-5-ylidene Mesoionic Carbene Complexes

被引：85
|
作者：
Keske, Eric C. [1 ]
Zenkina, Olena V. [1 ]
Wang, Ruiyao [1 ]
Crudden, Cathleen M. [1 ]
机构：
[1] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada
来源：
ORGANOMETALLICS | 2012年 / 31卷 / 01期
基金：
加拿大自然科学与工程研究理事会; 加拿大创新基金会;
关键词：
N-HETEROCYCLIC CARBENES; HIGHLY SELECTIVE CATALYSTS; PALLADIUM COMPLEXES; PINCER COMPLEXES; LIGANDS; HYDROFORMYLATION; REACTIVITY; RH; DICARBENE; STABILITY;
D O I：
10.1021/om201104f
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
New mono- and bidentate 1,2,3-triazol-S-ylidene mesoionic carbene (MIC) ligands have been synthesized and reacted with silver oxide, forming cationic 1:2 and 2:2 Ag:MIC ([AgL2]Br and [Ag2L2][Ag2Br4]) complexes, respectively. These complexes have been isolated and characterized. They were further found to be potent transmetalation agents toward rhodium, resulting in the preparation of mono- and bimetallic rhodium complexes. The reaction of the 2:2 Ag:L complex with [Rh(COD)(2)]BF4 results in the first reported example of a cationic bimetallic rhodium MIC complex. This complex was fully characterized, and its X-ray structure is reported. Interestingly, this complex exhibits various secondary noncovalent interactions in the solid state of the general type C-H center dot center dot center dot X, where X = F, Cl.
引用
收藏
页码：456 / 461
页数：6
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