The synthesis of various Rhenium complexes is followed by an investigation of their capacity to reduce CO2 photocatalytically. Re(bpy)(CO)3X (X=Cl, NCS) is irradiated in a CO2 saturated DMF:TEOA solution in a Pyrex tube capped with a serum cap. The CO produced in the reaction is tracked using a gas chromatograph, and this is followed by examining the carboxylated Re(dcbpy)(CO)3X dye derivatives in the same manner. The objective is attaching the Rhenium dye to TiO2 making it a photocathode and replacing the sacrificial reagent, TEOA, with a photoanode in a photo-electrochemical cell which would produce both electricity and carry out a catalytic reaction simultaneously. CO2 Insertion into olefin-metal bonds is also studied for the production of acrylic acid