Expanding the Chemistry of CationicN-Heterocyclic Carbenes: Alternative Synthesis, Reactivity, and Coordination Chemistry

Autor: Stephan Raub, Björn Hildebrandt, Walter Frank, Christian Ganter
Rok vydání: 2012
Předmět:
Zdroj: Chemistry - A European Journal. 18:6670-6678
ISSN: 0947-6539
Popis: A new synthetic route to complexes of the cationic N-heterocyclic carbene ligand 2 has been developed by the attachment of a cationic pentamethylcyclopentadienylruthenium ([RuCp*](+)) fragment to a metal-coordinated benzimidazol-2-ylidene ligand. The coordination chemistry and the steric and electronic properties of the cationic carbene were investigated in detail by experimental and theoretical methods. X-ray structures of three carbene-metal complexes were determined. The cationic ligand 2 is a poorer overall electron donor relative to the related neutral carbene, which is evident from cyclic voltammetry (CV) and IR measurements.
Databáze: OpenAIRE