Abstract
A new approach in synthesizing an open chain tetrabenzimidazolium salts as a precursor for the synthesis of dinuclear Ag(I) complex containing tetra-NHC (where NHC = N-heterocyclic carbene) is described. This tetrabenzimidazolium acylic carbene was prepared by alkyl and aromatic linker under aerobic condition. The novel tetra-NHC dinuclaer Ag(I) complex of the synthesized salt was obtained by in situ deprotonation using Ag2O. The structural studies of the complex revealed that the molecule exhibits as a dinuclear twisted structure with two Ag(I) ions coordinate linearly to the two pairs of carbenes. The pair of Ag(I) is further stabilised with the presence of argentophilic interaction. (C) 2016 Elsevier B.V. All rights reserved.