Acta Cryst. (2003). E59, m102-m104  [ doi:10.1107/S1600536803003155 ]

Tetrakis[4-amino-N-(2-hydroxyethyl)pyridinium] hexacosaoxooctamolybdate

Y. Yan, C.-D. Wu, J.-H. Liu, Q.-Z. Zhang and C.-Z. Lu

Abstract: The title compound, (C₇H₁₁N₂O)₄[Mo₈O₂₆], was synthesized by hydrothermal reaction of an acidified aqueous solution of Na₂Mo₂O₄·2H₂O, N-(2-hydroxyethyl)-4-aminopyridine sulfate and Zn(CH₃COO)₂·4H₂O. Single X-ray crystal analysis reveals that the structure of the title compound consists of a centrosymmetric -octamolybdate anion and N-(2-hydroxyethyl)-4-aminopyridinium cations. The Mo-O bond lengths are in the range 1.687  (4)-1.708  (4)  Å for terminal Mo-O bonds and 1.759  (4)-2.437  (4)  Å for the Mo-O bonds shared by two or more neighboring {MoO₆} octahedra. The O-HO hydrogen-bond lengths are 2.677  (8)-2.804  (8)  Å, and the N-HN hydrogen-bond lengths are 2.905  (8)-3.033  (7)  Å.

Online 14 February 2003

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