Acta Cryst. (2001). E57, m349-m351  [ doi:10.1107/S1600536801010546 ]

Bis[4,4'-bipyridinium(2+)] hexacosaoxooctamolybdate

C.-D. Wu, C.-Z. Lu, H.-H. Zhuang and J.-S. Huang

Abstract: The title compound, (C₁₀H₁₀N₂)₂[Mo₈O₂₆], was produced by hydrothermal reaction of an acidified aqueous solution of H₂MoO₄, 4,4'-bipyridine and NiCl₂·6H₂O. The structure of the title compound consists of the -octamolybdate anion having a center of symmetry and protonated 4,4'-bipyridine cations. The distances between Mo and O atoms shared by two or more neighboring {MoO₆} octahedra are in the range 1.750 (2)-2.450 (2) Å and those between Mo and terminal O atoms in the range 1.696 (3)-1.720 (3) Å. The N-HO hydrogen-bond lengths are in the range 2.722 (4)-2.755 (4) Å.

Online 13 July 2001

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