Synthesis of catalytically active porous organic polymer from iron phthalocyanine and diimide building blocks

Abstract

A novel diimide-linked, iron(III) containing porous organic polymer (FePPOP) was designed and synthesized by the raise-by-one-story method using iron(III)tetraaminophthalocyanine and 3,4,9,10-perylene tetracarboxylic dianhydride. The yielded polymer has been fully characterized by IR, X-ray diffraction, scanning electron microscopy, thermal gravimetric analysis and nitrogen sorption isotherm measurements. FePPOP has unique morphological properties e.g. amorphous, insoluble, multilayered microporous structure. It also served as an efficient heterogeneous catalyst in the oxidation reaction of benzyl alcohol to benzaldehyde under mild reaction condition with a large turnover number as high as 960. The present work showcased a group of structure–function relationship among molecular structure, porous organic polymer structure, and catalyst functional properties. It would attract great research interest in the catalysis applications of a new class of porous organic polymers in organic reactions.