Molecular catalysts based on transition metals have been extensively studied in the activation of carbon dioxide (CO2). Specifically, diimine-tricarbonly Re(I) complexes are model molecular catalysts for photocatalytic and electrochemical reduction of CO2. We have prepared hybrid photocatalysts by grafting the Re(I) complexes onto solid-state surfaces. In this study, we utilize FTIR spectroscopy to investigate the interactions between CO2 and surface Re(I) sites in the presence of a tertiary amine. Different surfaces and linking strategies are used to prepare the hybrid photocatalysts. Our studies clearly demonstrate the effects of surfaces and linkages on the adsorption/activation of CO2 on the surface Re(I) sites. The results provide useful information regarding photocatalytic CO2 reduction on transition metal centers.

FTIR studies of interactions between carbon dioxide and surface molecular photocatalysts

249th National Meeting (2015)

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