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Updated: Apr 20, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Copper(I), silver(I) and gold(I) complexes of N-heterocyclic carbene-phosphinidene
Venkata A K Adiraju1, Muhammed Yousufuddin, H V Rasika Dias
1Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA. dias@uta.edu.
Abstract:
N-heterocyclic carbene stabilized phosphinidene IMes·PPh has been used as a bridging ligand to isolate a group of closely related molecules involving all three coinage metal ions. The bis-copper(I) chloride, bis-silver(I) chloride and bis-copper(I) bromide adducts of IMes·PPh crystallize as halide ion bridged octanuclear molecules while the [IMes·PPh](AuCl)2 adduct remains monomeric. These molecules feature long P-C(carbene) bonds in the range 1.822(3)-1.843(4) Å, near the typical P-C single bond length region.
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