Synthesis and properties of conjugated bimetallic ruthenium complexes with σ,σ-bridging azobenzene chains

A versatile synthetic route to conjugated bimetallic ruthenium complexes with σ,σ-bridging azobenzene chains was developed, and new ruthenium complexes with various ligands were synthesized and characterized. These bimetallic complexes showed a remarkable absorption in the visible region (λmax: 452–483 nm), and undergo trans-to-cis isomerization under UV light irradiation for short time. Electrochemical study showed that the metal centers in bimetallic complexes containing the CHCHC6H4NNC6H4CHCH bridge interact with each other.

Several conjugated bimetallic ruthenium complexes with σ,σ-bridging azobenzene chains were synthesized and characterized. These bimetallic complexes showed a remarkable absorption in the visible region, and undergo trans-to-cis isomerization under UV light irradiation for short time. Electrochemical study showed that the metals linked through the CHCHC6H4NNC6H4CHCH bridge interact with each other.Figure optionsDownload as PowerPoint slide