Self-assembly of platinum(II) 6-phenyl-2,2′-bipyridine complexes with solvato- and iono-chromic phenomena

Mono- and di-nuclear organoplatinum(II) monomers with cyclometalated 6-phenyl-2,2′-bipyridine ligands have been successfully constructed. These systems are capable of displaying intriguing solvato- and iono-chromic phenomena by elaborately manipulating non-covalent Pt⋯Pt metal–metal and π–π stacking interactions for their self-assembly processes.