Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 49, Pages 13568-13572Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201408354
Keywords
N-heterocyclic carbenes; phosphinidenes; phosphinidynes; phosphorus ligands; transition metals
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The N-heterocyclic carbene-phosphinidene adduct IPr=PSiMe3 is introduced as a synthon for the preparation of terminal carbene-phosphinidyne transition metal complexes of the type [(IPr=P)MLn] ( MLn=(eta(6)-p-cymene) RuCl) and (eta 5-C5Me5) RhCl). Their spectroscopic and structural characteristics, namely low-field P-31 NMR chemical shifts and short metal-phosphorus bonds, show their similarity with arylphosphinidene complexes. The formally mononegative IPr=P ligand is also capable of bridging two or three metal atoms as demonstrated by the preparation of bi-and trimetallic RuAu, RhAu, Rh-2, and Rh2Au complexes.
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