Hysteresis in the gas sorption isotherms of metal–organic cages accompanied by subtle changes in molecular packing

Craig, Gavin A. and Larpent, Patrick and Urabe, Hinano and Legrand, Alexandre and Bonneau, Mickaele and Kusaka, Shinpei and Furukawa, Shuhei (2020) Hysteresis in the gas sorption isotherms of metal–organic cages accompanied by subtle changes in molecular packing. Chemical Communications, 56 (25). pp. 3689-3692. ISSN 1359-7345 (https://doi.org/10.1039/D0CC00932F)

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Abstract

Structural deformation in response to gas sorption is rarely observed for porous molecular solids, when compared to porous framework materials. Here, we describe the effect of chemical modification on the exterior of lantern-type metal–organic cages on the emergence and then disappearance of cooperative gas uptake. The results suggest that supramolecular design of ligands can be used to reveal this behaviour.