Flexible Porous Coordination Polymer with Multiple Configurations for Guest Recognition and Switchable CO2 Sorption Properties

Abstract Realizing multiple metastable configurations in a single porous coordination polymer (PCP) has long been pursued to achieve switchable functionality. In this study, we reported multiple configurations in one PCP material via the design of the adjustable intraframework π-π stacking moieties. We demonstrated that the PCP can accommodate three different open pore phases depending on the type of solvent. Furthermore, this PCP exhibits three distinct closed pore phases depending on the activation approaches, demonstrating different CO2 sorption properties.