An unprecedented 3D POM-MOF based on (7,8)-connected twin Wells-Dawson clusters: synthesis, structure, electrocatalytic and photocatalytic properties.

The first (7,8)-connected polyoxometalate-based metal-organic framework (POM-MOF) has been constructed from seven- and eight-connected twin Wells-Dawson clusters, and possesses the highest connection number of polyoxometalates to any mixed-connected POM-MOF to date and a unique structural motif that contains both organic-inorganic and all-inorganic networks.