Acta Cryst. (2007). E63, m2370  [ doi:10.1107/S1600536807040329 ]

Potassium salt of salicylidene--hydroxyalanine

X.-S. Gao, Y.-M. Wan, Z.-F. Lv, Y.-X. Shi and J.-T. Wang

Abstract: The title compound, poly[[-3-hydroxy-2-(2-hydroxybenzylideneamino)propionato]potassium], [K(C₁₀H₁₀NO₄)]_n, is an effective material for preparing rare earth Eu complexes. It is composed of planar six-membered rings and planar five-membered rings formed by intramolecular O-HN hydrogen bonding, which are oriented with respect to each other at a dihedral angle of 3.56 (4)°. The K⁺ ion is surrounded by seven O atoms, five from three carboxylate groups and two from two hydroxyl groups. In the crystal structure, intermolecular O-HO hydrogen bonds result in the formation of chains along the c axis.

Online 17 August 2007

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