New bimetallic complexes of late transition metals involving pyrazole-bridged bis N-heterocyclic carbene ligands.
Bimetallic Ni, Rh, and Ir complexes of pyrazolate biscarbene containing bulky substituents have been synthesized and characterized by X-ray crystallography; the Ni complex dimerizes to a highly congested L(2)Ni(2) structure, whereas the corresponding Rh and Ir complexes form bimetallic LM(2) structures.
Jeon
Sang-Jin
SJ
Department of Chemistry, Stanford University, Stanford, California, USA.
Waymouth
Robert M
RM