Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 1 (January 2013)

organic compounds

Acta Cryst. (2013). E69, o57    [ doi:10.1107/S160053681204977X ]

Glycine-phthalic acid (1/1)

T. Balakrishnan, K. Ramamurthi and S. Thamotharan

Abstract: In the title compound, C2H5NO2·C8H6O4, the glycine mol­ecule exists as a zwitterion (2-aza­niumyl­ethano­ate) with a positively charged amino group and a negatively charged carboxyl­ate group. In the crystal, N-H...O and O-H...O hydrogen bonds link the components into layers parallel to the ab plane. The central part of each layer is composed of hydrogen-bonded glycine zwitterions, while phthalic acid mol­ecules inter­act with the zwitterions in such a way that benzene rings protrude up and down from the layer.

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