Dual emission from a family of conjugated dinuclear Ru(II) complexes.

Dual emission is observed from a family of simple acetylene-linked dinuclear RuII complexes, where two MLCT excited states coexist at room temperature and in fluid solution. This unique behavior is attributed to a specific substitution pattern on the bridging ligand and provides the opportunity to investigate the structural and electronic features that result in decoupling of standard nonradiative decay pathways.