Yamada T1,2,3, Nankawa T4.
Inorg Chem. 2016 Sep 6;55(17):8267-70. doi: 10.1021/acs.inorgchem.6b01534. Epub 2016 Aug 23.A novel metal-organic framework, (Hpy)2[Zn2(ox)3]·nH2O (n = 0, 1), having a pyridinium cation, was newly synthesized, and the crystal structures were determined. The hydrated compound shows a high proton conductivity of 2.2 × 10(-3) S cm(-1) at 298 K and 98% relative humidity. Single crystal XRD analysis revealed a rotational displacement factor for the hydrated pyridinium ring and elongated water site that is thought to cause the high proton conductivity.