An N-Heterocyclic Carbene Ligand with an Oxalamide Backbone

被引：117

作者：

Braun, Markus ^{[1
]}

Frank, Walter

Reiss, Guido J.

Ganter, Christian ^{[1
]}

机构：

[1] Univ Dusseldorf, Inst Anorgan Chem & Strukturchem, D-40225 Dusseldorf, Germany

来源：

ORGANOMETALLICS | 2010年 / 29卷 / 20期

关键词：

TRANSITION-METAL-COMPLEXES; ELECTRONIC-PROPERTIES; CHLORIDE COMPLEXES; PRECURSORS; RH(I);

D O I：

10.1021/om100728n

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The preparation of the novel N-heterocyclic carbene ligand 3 based on an oxalamide backbone is described. Carbene 3 is not stable as a monomeric species at ambient temperature but dimerizes to the olefin 4 in the absence of trapping reagents. Carbene 3 reacts with elemental sulfur, tert-butylisocyanide, or [M(COD)Cl](2) (M = Rh, Ir) to give thione 5, ketenimine 6, or complexes [(3)M(COD)Cl] (7), respectively. The dicarbonyl complexes [(3)M(CO)(2)Cl] (8) (M = Rh, Ir) show high-energy CO vibrations. The carbene ligand 3 behaves as a remarkably poor net electron donor compared to other NHC ligands.

引用

页码：4418 / 4420

页数：3

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