CO 2 -induced gate-opening structural transition process of a porous coordination polymer revealed by solid-state 13 C NMR.

This study investigates the gate-opening closed-to-open-pore structural transition of a porous coordination polymer induced by CO 2 adsorption. Solid-state 13 C NMR examination of adsorbed CO 2 and framework dynamics reveals the surface adsorption state of the closed structure below the transition pressure and an intermediate structure during the transition process.