Synthesis, photophysical and electrochemical investigation of dinuclear tetrazolato-bridged rhenium complexes

摘要: Starting from anionic tetrazole-based ligands, namely, 5-(4′-cyanophenyl)tetrazolate and 5-(4′-pyridyl)tetrazolate, mononuclear dinuclear complexes of fac-[Re(CO)3(phen)]+ (phen = 1,10-phenanthroline) were prepared characterized. For the complexes, regioselective coordination metal fragments on negatively charged tetrazolato ring is exclusively obtained. Coordination to benzonitrile pyridine groups was achieved by previous alkylation tetrazole ring. Dinuclear obtained treatment corresponding tetrazole-bound with fac-[Re(CO)3(phen)(THF)]+. The second rhenium fragment coordinated either or, in case ligand, electrochemical properties probed an imidazolium ionic liquid, highlighting reduction processes centered phen ligand oxidation localized metal. photophysical are characterized...