The reaction of the novel bichromophoric Pd complexes with styrene resulted in the formation of polymer or dimer by UV-vis light irradiation, depending upon the connectivity of the naphthyl moiety. The Pd complex having the bichromophore with a Ru(II)-polypyridyl and a naphthyl moiety connected by a single a bond contained long-lived (MLCT)-M-3 emitting species.