1391825-80-1Relevant articles and documents
Bis(tridentate) ruthenium-terpyridine complexes featuring microsecond excited-state lifetimes
Brown, Douglas G.,Sanguantrakun, Nawaporn,Schulze, Benjamin,Schubert, Ulrich S.,Berlinguette, Curtis P.
, p. 12354 - 12357 (2012)
A series of heteroleptic bis(tridentate) ruthenium(II) complexes, each bearing a substituted 2,2′:6′,2″-terpyridine (terpy) ligand, is characterized by room temperature microsecond excited-state lifetimes. This observation is a consequence of the strongly σ-donating and weakly π-accepting tridentate carbene ligand, 2′,6′-bis(1-mesityl-3- methyl-1,2,3-triazol-4-yl-5-idene)pyridine (C^N^C), adjacent to the terpy maintaining a large separation between the ligand field and metal-to-ligand charge transfer (MLCT) states while also preserving a large 3MLCT energy. The observed lifetimes are the highest documented lifetimes for unimolecular ruthenium(II) complexes and are four orders in magnitude higher than that associated with [Ru(terpy)2]2+.