A new 2D cadmium coordination polymer based on hydroxyl‐substituted benzenedicarboxylic acid as an effective heterogeneous catalyst for Knoevenagel condensation

Abstract

A self‐assembled new 2D cadmium network, [Cd (BDC‐OH)(DMF) 2 ·DMF] n (Cd‐BDC‐OH), was synthesized based on 2‐hydroxyterephthalic acid (BDC‐OH) ligand and utilized as a heterogeneous catalyst for Knoevenagel condensation. The structure was fully elucidated by single‐crystal X‐ray diffraction, Hirshfeld surface analysis, powder X‐ray diffraction, field emission‐scanning electron microscopy, Fourier transform‐infrared spectroscopy and thermogravimetric analysis. The fabricated coordination polymer exhibited high catalytic activity under ambient conditions, and was used without significant drop in product yield in further cycles.