A new POMOF consisting of [VW12]4 − clusters and metal-organic nanotubes: Synthesis, structure, electrocatalytic and luminescent properties

•Encapsulated the [VW12]4 − clusters into the POMOF for the first time•The POMOF consisting of bamboo-shaped hybrid nanotubes with honeycomb apertures•Showing good electrocatalytic activities toward oxidation of potassium iodate

A novel compound, [Co2(bimb)2VW12O40] [bimb]·6H2O (1) (bimb = 1.4-bis(1-imidazolyl)benzene), with polyoxometalate-based metal-organic framework (POMOF), has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction analysis, infrared spectrum, X-ray photoemission spectra, elemental analyses, and powder X-ray diffraction pattern. In the compound, there are metal-organic nanotubes formed by [Co2(bimb)] 4 + zig-zag chains and six-connected VW12 guest clusters. Further, the neighboring metal-organic nanotubes are connected together via sharing the [Co2bimb]4 + zig-zag chains to achieve a highly opened POMOF with hexagonal apertures, representing the first POMOF constructed by V-centered tungstovanadate. Electrochemical and luminescent properties of the compound were also investigated.

Graphical abstractA novel POMOF with hexagonal apertures constructed by V-centered tungstovanadate has been hydrothermally synthesized, and its electrochemical and luminescent properties have been investigated.Figure optionsDownload full-size imageDownload as PowerPoint slide