<i>N</i>-Heterocyclic Carbenes:  Synthesis, Structures, and Electronic Ligand Properties<sup>,</sup>

Wolfgang A. Herrmann; Jan Schütz; Guido D. Frey; Eberhardt Herdtweck

doi:10.1021/om0600801

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JOURNAL ARTICLE

N-Heterocyclic Carbenes: Synthesis, Structures, and Electronic Ligand Properties^,

Wolfgang A. Herrmann Jan Schütz Guido D. Frey Eberhardt Herdtweck

Year: 2006 Journal: Organometallics Vol: 25 (10)Pages: 2437-2448 Publisher: American Chemical Society

DOI: 10.1021/om0600801

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Abstract

N-Heterocyclic carbene (NHC) rhodium(I) complexes of general formula Rh(COD)X(NHC) are synthesized and structurally characterized (spectroscopy, X-ray diffraction). The relative σ-donor/π-acceptor quality of various NHC ligands was examined and classified by means of IR spectroscopy at the corresponding Rh(CO)2I(NHC) complexes. The first single-crystal X-ray diffraction studies of rhodium pyrazolin- and tetrazolinylidene complexes are reported. A wide variety of different azolium salts was applied to obtain rhodium and iridium complexes with two and four carbene ligands.

Keywords:

Rhodium Carbene Chemistry Iridium Ligand (biochemistry) Crystal structure Acceptor X-ray crystallography Spectroscopy Nuclear magnetic resonance spectroscopy Single crystal Diffraction Crystallography Stereochemistry Catalysis Organic chemistry

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N-Heterocyclic Carbenes in Organic and Inorganic Chemistry

Physical Sciences → Chemistry → Organic Chemistry

Catalytic Cross-Coupling Reactions

Physical Sciences → Chemistry → Organic Chemistry

Synthetic Organic Chemistry Methods

Physical Sciences → Chemistry → Organic Chemistry

N-Heterocyclic Carbenes: Synthesis, Structures, and Electronic Ligand Properties^,

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