An integrated Re(i) photocatalyst/sensitizer that activates the formation of formic acid from reduction of CO2†
Abstract
The complex cis-[Re(bpy)2(CO)2]+OTf− (1+OTf−) is an integrated photosensitizer/catalyst for the selective visible light promoted photocatalytic reduction of CO2. The formation of formic acid is unique among this class of Re catalysts, which yield CO as the selective product. A supplemental photosensitizer, Ru(bpy)32+, considerably enhanced the performance of this catalyst.