Research Article: 4-Hy­droxy­anilinium 2-carb­oxy­acetate

Date Published: June 01, 2012

Publisher: International Union of Crystallography

Author(s): Ying-Chun Wang.


In the title compound, C6H8NO+·C3H3O4−, the amino N atom is protonated, and one of the carboxyl groups is deprotonated to maintain the charge balance. In the crystal, classical N—H⋯O and O—H⋯O hydrogen bonds connect the ions into a two-dimensional network parallel to the ac plane. In addition, the structure is further stabilized by C—H⋯O and π–π inter­actions [centroid–centroid distance = 4.115 (2) Å].

Partial Text

For the structures and properties of related compounds, see: Chen et al. (2001 ▶); Wang et al. (2002 ▶); Xue et al. (2002 ▶); Huang et al. (1999 ▶); Zhang et al. (2001 ▶); Ye et al. (2008 ▶).




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