Abstract

Tripotassium-tris[(µ3-oxido)triaqua-hexakis(acetato)triiron(III)](octadecatungsto-diphosphato(V))ditriacontahydrate, K3[Fe3O(CH3COO)6(H2O)3]3[P2W18O62]·32H2O (1) is constructed from Wells–Dawson type polyanion [α-P2W18O62]6− and triiron(III) cluster cations [Fe3O(CH3COO)6(H2O)3]+ which are assembled by potassium ions to form a supramolecular structure with nanoscale tunnels running parallel to the c-axis. The structure was confirmed by single crystal X-ray analysis, FT-IR, 1H and 31P NMR and UV–Vis spectroscopy studies, cyclic voltammetry and TGA-DSC thermal analyses. Compound 1 crystallizes in the monoclinic space group P21/n with cell parameters: a=17.81830(10)Å, b=29.6939(3)Å, c=29.7691(2)Å, β=91.4700 (10)° and Z=4.

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