A rare three-dimensional POM-based inorganic metal polymer bonded by CO2 with high catalytic performance for CO2 cycloaddition

Abstract

An exceedingly rare three-dimensional CO₂-coordinated inorganic polyoxoanion was prepared by a hydrothermal synthesis reaction. The CO₂ ligand connects with two Zn-ε-Keggin cores in a linear and symmetrical μ₂-η²o,o coordination pattern with a CO bond length of 1.099(112) Å. The new compound reported here exhibits not only appealing structures but also high catalytic activity for the cycloaddition of carbon dioxide with epoxides.