Acceptor substituted N-heterocyclic carbenes and their Rh(I)complexes: Synthesis, structure and properties

Autor: Eberhardt Herdtweck, Wolfgang A. Herrmann, Stephan D. Hoffmann, Peter Härter, Agnes Bittermann
Rok vydání: 2008
Předmět:
Zdroj: Journal of Organometallic Chemistry. 693:2079-2090
ISSN: 0022-328X
DOI: 10.1016/j.jorganchem.2008.01.039
Popis: Rhodium(I) complexes of acceptor substituted N-heterocyclic carbenes were obtained either by transmetalation from the corresponding Ag(I) complexes or by thermal decomposition of corresponding pentafluorobenzene carbene adducts. All complexes were fully characterized by means of NMR- and mass spectroscopy. Compounds 5, 6, 7 and 11 were although characterized by single-crystal X-ray analysis. The relative σ-donor/π-acceptor strength of the NHC ligands was determined by means of IR spectroscopy. Dimerisation behaviour of Rh carbonyl complexes was studied.
Databáze: OpenAIRE