CO_2 photoreduction with long-wavelength light: dyads and monomers of zinc porphyrin and rhenium bipyridine

摘要

Photocatalytic CO_2 reduction has been studied for two dyads with porphyrin covalently attached to rhenium tricarbonyl bipyridine moieties, and on separate components consisting of [Re(CO)_3(Picoline)Bpy]~+ and either zinc porphyrin or zinc chlorin. TONs decrease in the order: zinc porphyrin + Re > long spacer dyad > zinc chlorin + Re > short spacer dyad.