Ruthenium and osmium complexes of 2,2′ : 6′,2″-terpyridine covalently linked to electron acceptor and electron donor groups

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Abstract
2,2′ : 6′,2″-Terpyridine ligands have been modified so as to bear an electron acceptor or an electron donor group; efficient intramolecular vectorial electron transfer has been shown to occur in an osmium complex from its metal-to-ligand charge transfer excited state.