(μ-Pentafluorophenylthiorato)(o-bis(diphenylphosphino)benzene) Silver(I) Dimer

This study reports the synthesis and characterization of a novel thiolate-bridged heteroleptic dinuclear silver(I) complex, [Ag(μ-C6F5S)(dppbz)]2, incorporating o-bis(diphenylphosphino)benzene (dppbz). The complex was synthesized in high yield via the reaction of silver(I) oxide with pentafluorothiophenol and dppbz. Single crystal X-ray diffraction analysis revealed a distorted tetrahedral structure with an Ag2S2 core, where each Ag atom is coordinated by dppbz. The Ag…Ag distance (3.2652(3) Å) suggests weak argentophilic interaction. Notably, an uncommon intermolecular fluorine-fluorine contact is observed, likely stabilized by intermolecular hydrogen bonding stabilizing the structure. The complex shows weak luminescence under UV radiation with an emission maximum at 514 nm.