Acta Cryst. (2007). E63, o2805-o2807  [ doi:10.1107/S1600536807020612 ]

L-Argininium(+) maleate(-) dihydrate

Z.-H. Sun, W.-T. Yu, J.-D. Fan, D. Xu and X.-Q. Wang

Abstract: The title complex, C₆H₁₅N₄O₂⁺·C₄H₃O₄^-·2H₂O, contains a planar ring formed by sharing one H atom between the O atoms in the carboxyl groups of the maleate anion. This hydrogen bond is slightly asymmetric. In the L-argininium(+) cation, both the -amino and the guanidyl groups are protonated. The nonlinear optical response of the compound is derived from the intrinsic hyperpolarizabilities of the L-argininium cations, maleate anions and intermolecular hydrogen bonds.

Online 3 May 2007

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