Doubly interpenetrated indium-tricarboxylate frameworks mediated by small molecules with enhanced porosity

Abstract

A synthetic strategy of indium-tricarboxylate frameworks by using small molecule regulators has been proposed to obtain four types of In-based coordination polymers with doubly interpenetrated structures. InOF-19–21 exhibit 2D layers, while InOF-22 possesses a 2-fold 3D network connected by bridging oxalate ligands between layers, exhibiting different sorption capacities for H₂ and CH₄ with enhanced porosity.