Intervalence charge transfer in a “chain-like” ruthenium trinuclear assembly based on the bridging ligand 4,7-phenanthrolino-5,6:5′,6′-pyrazine (ppz)†
Abstract
The IVCT characteristics of the mixed valence forms of the trinuclear complex [{Δ-Ru(bpy)2}2{Δt-Ru(bpy)(µ-ppz)2}]n+ (n = 7, 8; t = trans), and the diastereoisomers (meso and rac) of the dinuclear complex [{Ru(bpy)2}2(µ-ppz)]5+, display a marked dependence on the nuclearity and extent of