respectively. Four trinuclear complexes [(bpy)6Ru3L1–4](PF6)6 (Ru-L1–4) were obtained by reaction of Ru(bpy)2Cl2·2H2O with ligands L1–4. The photophysical behaviors of these complexes were investigated by UV/Vis absorption and emission spectrometry. The complexes display metal-to-ligand charge transfer absorptions at 441–445 nm and emissions at 571–578 nm. Cyclic voltammetry data of the complexes show one RuII-centered