Acta Cryst. (2002). E58, o1005-o1007  [ doi:10.1107/S160053680201471X ]

2-Aminopyrimidin-1-ium trichloroacetate

M.-L. Hu, M.-D. Ye, S. M. Zain and S. W. Ng

Abstract: The 2-aminopyrimidin-1-ium trichloroacetate ion-pairs in the title compound, C₄H₆N₃⁺·C₂Cl₃O₂^-, are held together by two N-HO hydrogen bonds [N_aminoO = 2.733  (5); N_pyrimidiniumO = 2.783  (6)  Å], and adjacent ion-pairs are linked into a linear helical chain by a third and substantially weaker N-HO hydrogen bond [NO = 3.026  (3)  Å]. The calculated structure of the ion-pair geometry, optimized at the PM3 level, shows good agreement with the experimental results.

Online 16 August 2002

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