Photoredox capacity expanded by the Cu site of CuFe-Mabiq

Abstract

The monometallic Fe-Mabiq and bimetallic CuFe-Mabiq photoredox catalysts feature similar optical spectra and short excited state lifetimes. Nevertheless, they exhibit markedly different photochemistry. Photoreduction proceeds significantly faster for the bimetallic complex, and uniquely generates the three-electron reduced form. These characteristics underpin the self-sensitized photocatalytic behaviour of the bimetallic complex.