Used as a catalyst in carbon dioxide (CO₂) reduction reactions, converting CO₂ into carbon monoxide (CO) under mild conditions. Its reactivity is enhanced by the bipyridine ligand, which stabilizes the low-valent rhenium center and facilitates electron transfer. Commonly employed in electrochemical and photochemical systems for renewable energy applications, particularly in artificial photosynthesis and CO₂ mitigation technologies. Also studied in homogeneous catalysis for small molecule activation due to its robust redox properties.