Unusual desulfurization of a nickel dithiolene by bis(2-diphenylphosphinophenyl)phenylphosphine (tp) to produce Ni(tp)(R4btimdt) [R4btimdt = 5,5′-bis(1,3-dialkyl-4-imidazolidine-2-thione-4-thiolate], the first complex of this class of ligands

Abstract

A novel desulfurization reaction induced on the title nickel dithiolenes by a tripodal phosphine producing the first complex of the S,S-dianionic title ligand, which belongs to a novel family of redox active heterocycles, and the fully oxidised trimeric form of this ligand are described.