title: Glycine-phthalic acid (1/1).
abstract: In the title compound, C2H5NO2·C8H6O4, the glycine mol-ecule exists as a zwitterion (2-aza-niumyl-ethano-ate) with a positively charged amino group and a negatively charged carboxyl-ate 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 mol-ecules inter-act with the zwitterions in such a way that benzene rings protrude up and down from the layer.
authors.affiliation: School of Physics, Bharathidasan University, Tiruchirappalli 620 024, India.
authors.forename: T
authors.initials: T
authors.lastname: Balakrishnan
authors.forename: K
authors.initials: K
authors.lastname: Ramamurthi
authors.forename: S
authors.initials: S
authors.lastname: Thamotharan