Layer-pillared metal-organic framework showing two-fold interpenetration and considerable solvent-accessible channels

Via solvothermal synthesis, the self-assembly of CuCl2, 1,4-benzenedicarboxylic acid, and N,N′-bis(4-pyridylformamide)-1,4-benzene in DMF generated a layer-pillared metal-organic coordination polymer, which affords two-fold interpenetration and considerable solvent-accessible channels where the guest water molecules reside. Further, the TG and XRD researches disclose that such interpenetrating net stabilized by H-bonds can be maintained up to 350 °C even after the release of free water molecules, and through the calcination and immersion experiments, it is suggested that the guest water molecules in the channels are reversible, which is traced by XRD and IR studies.