Département de chimie moléculaire

Abstract A new heteroleptic ruthenium complex based on a 2,2′;6′,2′′-terpyridine (tpy) and a thioether-based tridentate ligand, btap (btap: 2,6-bis(2-thioanisyl)pyridine) was synthesized. Under visible light irradiation, this complex in solution in acetonitrile undergoes a photochemical ejection of the thioether ligand leading to [Ru(tpy)CH3CN)3]2+ and the free ligand. The reaction was monitored using NMR and UV-Vis spectroscopies. This is very probably the first example of a tridentate ligand being expelled by the action of light.