García-Zarracino Reyes, Rangel-Marrón Marcela, Tlahuext Hugo, Höpfl Herbert
Acta Crystallogr Sect E Struct Rep Online. 2008 Nov 29;64(Pt 12):m1626. doi: 10.1107/S1600536808038889.
In the title salt, K(C(10)H(9)O(4)), the K(+) ions are coordinated by six O atoms from three different anions, and there is a cation-π inter-action at ca 3.14 Å. The 2-[2-(carboxymethyl)phenyl]acetate anions are stabilized by intramolecular O-H⋯O hydrogen bonds, and the K(+) cations are linked into one-dimensional coordination polymers running along the b axis; these are further inter-connected by weak C-H⋯O hydrogen bonds.