Synthesis, characterization, electrochemistry and photophysical studies of rhenium(I) tricarbonyl diimine complexes with carboxaldehyde alkynyl ligands

A class of rhenium(I) tricarbonyl diimine complexes with carboxaldehyde alkynyl ligands, [Re(CO)3(N^N)(CC–C6H4–CHO)] (N^N = α,α′-diimine ligand), has been successfully synthesized and characterized, and the X-ray crystal structure of one of the complexes has been determined. Electrochemical and photophysical studies have been performed to study the effect of the variation of the diimine ligand on the redox and optical properties of the rhenium(I) complexes.

A class of rhenium(I) tricarbonyl diimine complexes of carboxaldehyde alkynyl was synthesized and characterized, and the X-ray crystal structure of one of the complexes was determined. The redox properties were studied by electrochemistry. The complexes were found to emit at 630–672 nm in solution, assignable to a 3MLCT origin.Figure optionsDownload as PowerPoint slide