In situ variable-temperature single crystal X-ray diffraction studies of the single-crystal-to-single-crystal dehydration and rehydration of a mixed-ligand 2D zinc metal–organic framework using trimesate and 4,4′-bipyridine-N,N′-dioxide as ligands

A mixed-ligand 2D MOF based on ZnSO₄, trimesate and 4,4′-bipyridine-N,N′-dioxide shows reversible loss of uncoordinated and coordinated water molecules.