The Synthesis and Structural Characterization of a N-Heterocyclic Carbene-Substituted Palladacycle

Abstract

Reaction of {[Pd(dmba)(μ-Cl)]<inf>2</inf>} (dmba = (CH<inf>3</inf>) <inf>2</inf>NCH<inf>2</inf>C<inf>6</inf>H<inf>4</inf>) with an in situ generated N-heterocyclic carbene (NHC = 1,3-dimesitylimidazolidin-2-ylidene) afforded crystals containing [chloro-(1,3-dimesitylimidazolidin-2-ylidene)(N,N- dimethylaminobenzyl-C1,N)palladium(II)] (VII). Molecular and crystal structures of the title compound have been determined by single crystal X-ray diffraction technique. Complex VII crystallizes in space group P1, with a = 13.685(3) Å, b = 13.590(2) Å, c = 16.229(3) Å, α = 87.162(13)°, β = 70.514(15)°, γ = 84.153(16)°, Z = 4, D<inf>Calcd</inf> = 1.367 g cm-3. There are two independent molecules in the asymmetric unit. © 2007 Taylor & Francis.