Efficient Synthesis of One- and Two-Dimensional Multimetallic Gold-Bis(dithiolene) Complexes

Multimetallic complexes having -conjugated dithiolate ligands have recently received attention because of their unique solid-state properties. Reported herein are efficient and versatile routes for the synthesis of structurally well-defined multimetallic gold-bis(dithiolene) complexes. A dichlorogold(III) complex having a benzene-1,2-dithiolate ligand was prepared as a key terminal unit. A one-dimensional dimetallic gold complex was synthesized in good yield by using benzene-1,2,4,5-tetrathiolate as a bridging ligand. Furthermore, by using benzenehexathiolate as a bridging ligand, this strategy was applied to the synthesis of a two-dimensional trimetallic complex with a starburst structure. The solid-state structures of the anionic complexes were unambiguously confirmed by X-ray diffraction analyses.