Summary: | In the title hydrated salt, [Co(C12H8N2)3]2[PVW11O40]·2H2O, the complete Kegggin ion is generated by crystallographic inversion symmetry, which imposes statistical disorder on the O atoms of its central PO4 group. The V atom is statistically disordered over all the metal sites of the anion. In the cation, the Co2+ ion is coordinated by three bidentate 1,10-phenanthroline (phen) ligands, generating a distorted CoN6 octahedron. Possible very weak intramolecular C—H...π interactions occur in the cation. In the crystal, the components are linked by O—H...O and C—H...O interactions, building a three-dimensional network featuring one-dimensional voids along the c-axis direction.
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