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Updated: Aug 22, 2025

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Poly[bis-[μ2-4,4'-bis-(imidazol-1-ylmeth-yl)biphenyl-κ2 N:N']di-chlorido-nickel(II)]
Min Deng1, Yue Yin1, Shan-Shan Wang1
1Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650050, People's Republic of China.
Abstract:
In the title compound, [NiCl2(C20H18N4)2] , the Ni2+ cation is situated on an inversion center and is coordinated by two chloride ions and four imidazole N atoms of four different 4,4'-bis-[(1H-imidazol-1-yl)meth-yl]-1,1'-biphenyl (BIMB), forming a slightly distorted octa-hedral geometry. Each BIMB ligand adopts a linear linker to connect Ni2+ ions, forming a two-dimensional layer with an sql network. In the crystal, neighboring layers repeat in an ABAB stacking mode, and weak inter-molecular C-H⋯Cl hydrogen bonds between alternate layers lead to a three-dimensional, twofold inter-penetrated, supra-molecular framework with a pcu topology net.
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