Rhenium(I) tricarbonyl polymers for CO₂ reduction, self-assembly, and biomedical applications

This review provides a comprehensive overview of recent advancements in the field of Rhenium(I) tricarbonyl complexes integrated within polymeric structures. It delves into the rich morphological behavior of these materials, from the self-assembly of nanoaggregates to the formation of complex, environmentally sensitive architectures. Furthermore, it examines their pivotal roles in addressing key environmental challenges through both electrocatalytic and photocatalytic CO2 reduction, highlighting strategies like electropolymerization and the use of porous organic frameworks. Finally, emerging applications in bioimaging and therapeutics, where these polymers serve as theranostic probes and drug delivery vehicles, are discussed. The overarching goal is to underscore how the polymeric environment profoundly influences the self-assembly, excited-state dynamics, and catalytic performance of Re(I) complexes, offering critical insights for the future design of advanced functional materials.