Photoluminescence from Au(I) Complexes Exhibiting Color Sensitivity to the Structure of the Molecular Aggregates

Gold(I) complexes with a flexible chain were synthesized, and their photophysical properties were discussed. Particular attention was focused on the effect of a slight difference at the chain terminal on their luminescence properties. Both complexes exhibited strong luminescence in crystals, albeit with no luminescence in isotropic liquids. The luminescence properties of those complexes were very sensitive to not only the primary structure but also the structure of molecular aggregates.