Acta Cryst. (2010). E66, m186-m187  [ doi:10.1107/S1600536810002096 ]

catena-Poly[diquinolinium [[diaquacobaltate(II)]--cyclotetraphosphato] hexahydrate]

H. Hemissi, M. Rzaigui and Z. A. Al Othman

Abstract: The cyclotetraphosphate anion, [P₄O₁₂]^4-, forms the title complex with cobalt(II) and quinolinium, {(C₉H₈N)₂[Co(P₄O₁₂)(H₂O)₂]·6H₂O}_n. In the complex anion, the Co^II ion, lying on an inversion center, is surrounded by four phosphate O atoms and two water molecules in a slightly distorted octahedral geometry. The crystal structure consists of anionic ribbons of formula {[Co(P₄O₁₂)(H₂O)₂]^2-}_n extending along [100]. A network of O-HO, N-HO and C-HO hydrogen bonds consolidates the crystal packing.

Online 23 January 2010

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