Metal-organic frameworks of p-hydroxybenzoic acid: synthesis, structure and ring opening polymerization capability

Yi Gong; Simon J Sharp; Mark R J Elsegood; Carl Redshaw

doi:10.1039/d4ra06361a

Metal-organic frameworks of p-hydroxybenzoic acid: synthesis, structure and ring opening polymerization capability

RSC Adv. 2024 Nov 27;14(51):37895-37901. doi: 10.1039/d4ra06361a. eCollection 2024 Nov 25.

Authors

Yi Gong¹, Simon J Sharp², Mark R J Elsegood², Carl Redshaw¹

Affiliations

¹ Chemistry, School of Natural Sciences, University of Hull Hull HU6 7RX UK [email protected].
² Chemistry Department, Loughborough University Loughborough LE11 3TU UK [email protected].

Abstract

Two new, isostructural, metal-organic frameworks {[Co(O₂CC₆H₄O)(DMF)]₂} _n and {[Mn(O₂CC₆H₄O)(DMF)]₂} _n have been synthesised and structurally characterized. Use of p-hydroxybenzoic acid resulted in a three-dimensional MOF featuring a linker with a carboxylic group and a para-hydroxyl group. Ring opening polymerization of ε-caprolactone and δ-valerolactone has been performed using these MOFs as catalysts, and results compared with the known zinc MOF Zn(O₂CC₆H₄O). The resulting products are predominantly cyclic polymers. The manganese and zinc MOFs exhibit significant recyclability during ring opening polymerization.