Acta Cryst. (2008). E64, o377-o378  [ doi:10.1107/S1600536807068638 ]

(m-Phenylenedimethylene)diammonium p-nitrophenylphosphate perchlorate

Y. T. Tesema, T. B. Yisgedu, R. J. Butcher, Y. Gultneh and B. Ahvazi

Abstract: The title compound, C₈H₁₄N₂²⁺·C₁₂H₈N₂O₈P^-·ClO₄^-, was formed by the reaction of ,-bis-m-xylenediamine and sodium bis-p-nitrophenylphosphate in the presence of Zn(ClO₄)·6H₂O in methanol solution. The two amine groups of the m-xylenediammonium ion are each protonated and each hydrogen-bonded to two O atoms of the phosphate anion, which acts as a 1,3-bridge. The ammonium groups are arranged matched face to face and each pair is doubly bridged by two perchlorate ions through hydrogen bonding. In addition, there are also weak C-HO interactions. Both the N-HO and C-HO interactions are contained in a channel down the a axis. The perchlorate oxygen atoms are disordered over two positions with site occupancy factors of ca 0.7 and 0.3.

Online 4 January 2008

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