Acta Cryst. (2003). E59, m179-m182  [ doi:10.1107/S1600536803005828 ]

catena-[1,3-Diammoniopropane di-₂-hydroxo-di-₄-phosphato-trioxotrivanadium dihydrate]: a redetermination at 180  (2)  K

F. A. Almeida Paz, F.-N. Shi, T. Trindade, J. Rocha and J. Klinowski

Abstract: The crystal structure of the title compound, (C₃H₁₂N₂)[V₃O₃(OH)₂(PO₄)₂]·2H₂O, has been reported by Soghomonian et al. [Chem. Mater. (1993), 5, 1690-1691]. We present here a redetermination of greatly improved precision and at a low temperature of 180  (2)  K. The H atoms connected to oxygen have been successfully located and the coordination environments of the two crystallographically independent vanadium centres have been properly elucidated. Large channels, running along the a direction, contain water molecules and 1,3-diammoniopropane cations that are strongly hydrogen bonded to the anionic framework through N⁺-HO and O-HO interactions. One vanadyl (V=O) bond and the central -CH₂- group of 1,3-diammoniopropane are located on a mirror plane.

Online 21 March 2003

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