Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 12 (December 2013)


metal-organic compounds



rz5088 scheme

Acta Cryst. (2013). E69, m661-m662    [ doi:10.1107/S1600536813030687 ]

Bis(4-amino­pyridinium) [mu]6-oxido-dodeca-[mu]2-oxido-hexaoxido[rhenium(VII)tetratungsten(VI)vanadium(V)]ate hepta­hydrate

A. Maaloui, S. A. Toumi and M. Rzaigui

Abstract: In the title organic-inorganic hybrid compound, (C5H7N2)2[ReVW4O19]·7H2O, the Lindqvist-type polyoxido anion has crystallographically imposed mm2 symmetry and is built up by six MO6 (M = W, V, Re) edge-sharing distorted octa­hedra. The Re and V atoms share the same crystallographic site in a 0.5:0.5 ratio. The 4-amino­pyridinium cations lie on a mirror plane. Three of the four independent water O atoms in the asymmetric unit are located on a mirror plane whereas the remaining O atom has mm2 site symmetry. In the crystal, the cations, anions and water mol­ecules are linked into a three-dimensional network through O-H...O and N-H...O hydrogen-bonding inter­actions.


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