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. [ABSTRACT FROM AUTHOR]