Bi- and tri-nuclear ruthenium(II) complexes containing tetrapyridophenazine as a rigid bridging ligand

Abstract

The rigid, aromatic bis-tridentate bridging ligand tetrapyrido[2,3-a:3′,2′-c:2″,3″-h:3″′,2″′-j]phenazine (tpp) allowed the preparation of linear, stable bi- and tri-nuclear complexes of ruthenium(II) exhibiting low energy Ru → tpp MLCT absorptions and a strong electronic coupling in the mixed-valence state.

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