Acta Cryst. (2006). E62, o2694-o2696  [ doi:10.1107/S1600536806019763 ]

[(1H-Benzimidazol-2-ylmethyl)iminodimethylene]diphosphonic acid dihydrate

J.-W. Tong, L.-F. Ma, D.-K. Cao, Y.-Z. Li and L.-M. Zheng

Abstract: The title compound, C₉H₁₅O₆N₃P₂·2H₂O, contains two phosphonic acid groups and one benzimidazole group connected by an N(CH₂-)₃ group. One of the benzimidazole N atoms and two phosphonic acid O atoms of each PO₃ group are protonated. Extensive hydrogen-bonding interactions, as well as - stacking interactions, are found between the molecules, leading to a three-dimensional supramolecular network structure.

Online 9 June 2006

Copyright © International Union of Crystallography
IUCr Webmaster