Synthesis of monodentate bis(N-heterocyclic carbene) complexes iridium: Mixed complexes of abnormal NHCs, normal NHCs, and triazole NHCs

被引：23

作者：

Appelhans, Leah N. ^{[1
]}

Incarvito, Christopher D. ^{[1
]}

Crabtree, Robert H. ^{[1
]}

机构：

[1] Yale Univ, Dept Chem, New Haven, CT 06520 USA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2008年 / 693卷 / 16期

关键词：

N-heterocyclic carbene; synthesis; triazole; abnormal carbene; asymmetric catalysis; bis(carbene);

D O I：

10.1016/j.jorganchem.2008.05.024

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A stepwise synthesis of mixed monodentate bis-NHC complexes of Ir(I), employing Ag(I) NHC complexes as transfer agents, yields complexes with two monodentate NHCs having different steric and electronic characteristics. The crystal structure of the mixed complex ( 5) with both a triazole-derived NHC ligand and an imidazole-derived NHC ligand is reported and both the NHC ring geometry and the M-NHC bond lengths are similar to related complexes. The complexes maintain their integrity over time and do not disproportionate, consistent with the NHC ligands not being labile. (c) 2008 Elsevier B. V. All rights reserved.

引用

页码：2761 / 2766

页数：6

共 62 条

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