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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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