Abstract: | A near-UV triplet emission from Au2(dcpm)2](ClO4)2 has been discovered. Studies on the spectroscopic properties of the complexes Au2(dcpm)2]Y2 (Y=ClO4?, PF6?, CF3SO3?, Au(CN)2]?, Cl?, and I?; dcpm=bis(dicyclohexylphosphanyl)methane) support the assignment of the high-energy emissions at 360–368 nm to the 3dσ*pσ] excited state, adducts of which exhibit exciplex emissions in the visible region with solvent or counterions (see schematic diagram). |