Cadmium-containing windmill-like heteropolyoxoniobate macrocycle with high yield for catalyzing Knoevenagel condensation

A rare cadmium-containing windmill-like heteropolyoxoniobate macrocycle has been successfully synthesized with stable 1-D cyclic cluster aggregates. The compound exhibited promising basic catalytic ability for Knoevenagel condensation with a high yield under mild reaction conditions and high cycling stability. The theoretical calculation showed that the promising basic catalytic ability is due to the dense and stronger basic sites of the surface terminal O atoms.

Automated summary

A rare cadmium-containing windmill-like heteropolyoxoniobate macrocycle with stable 1-D cyclic cluster aggregates has been successfully synthesized. The compound exhibited promising basic catalytic ability for Knoevenagel condensation with high yield and cycling stability under mild reaction conditions. The theoretical calculation suggests that the dense and stronger basic sites of the surface terminal O atoms contribute to its excellent catalytic ability.