Post-synthetic molecular modifications based on Schiff base condensation reactions for designing functional paddlewheel diruthenium(ii,ii) complexes

Abstract

A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes ([Ru^II,II₂]) was developed by utilizing Schiff base condensation reactions of formyl-substituted benzoate-bridged [Ru^II,II₂] complexes with various aromatic monoamines under mild conditions. Cyclic voltammetry and DFT calculations revealed that the attached Schiff base groups significantly affected the electronic states of the resulting [Ru^II,II₂] complexes.