Multi-hydrophilic groups synergistic assembly ionic HOFs with multiple-water clusters and superprotonic single-crystal conductivity

In this paper, iHOF-43 and iHOF-44, which contain multiple water clusters, were prepared by introducing ligands that contain three hydrophilic functional groups. The proton conductivity ( a -axis) of iHOF-43 at 90 °C and 98% RH was 1.66 × 10 −1 S cm −1 .