Pnictogen-Bonding Catalysis: Copolymerization of CO₂ and Epoxides on Antimony(V) Platforms.

ABSTRACT: The copolymerization of CO₂ and epoxides to access polycarbonates represents a promising strategy for CO₂ utilization and for the production of useful polymers. Aiming to explore alternative transition-metal-free approaches that support this chemistry, we have investigated a series of triaryl-catecholatostiboranes as pnictogen-bonding platforms for the copolymerization of CO₂ and cyclohexene oxide (CHO). Our survey of these antimony species has identified motifs that promote this polymerization reaction efficiently, provided that bis-(triphenylphosphine)-iminium chloride is administered as an activator. By coupling these polymerization studies with a careful assessment of the structure, electronic attributes and Lewis acidity of the catecholatostiboranes, t

SUBMITTER: Jiang C 

PROVIDER: S-EPMC12603998 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature