Controlled assembly of octa-track Ag-bpe chain-modified Wells–Dawson polyoxometalates

A new three-dimensional (3D) organic–inorganic hybrid compound based on the Wells–Dawson POMs modified by Ag(I) ions and bpe (bpe = bis(4-pyridyl)ethylene) molecules, {[Ag(C12N2H10)]3(H3P2W18O62)}·(C12N2H10)·4H2O, has been synthesized under hydrothermal condition and structurally characterized. Crystal data for the title compound: C48H51Ag3N8O66P2W18, monoclinic, space group P21/m, a = 13.623(5) Å, b = 25.345(5) Å, c = 13.858(5) Å, α = 90°, β = 98.038(5)°, γ = 90°, V = 4738(3) Å3. It represents an important example of the family of Wells–Dawson POMs modified by M–N chains, in which Wells–Dawson POMs covalently link eight transitional metal complex fragments and represent the highest track number (8) of M–N chains modifying Wells–Dawson POMs. Furthermore, the electrochemical properties of the title compound were studied.

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