Acta Cryst. (2003). E59, o1977-o1979  [ doi:10.1107/S1600536803024668 ]

(S)-(-)-1-Phenylethylaminium 3,5-dinitrosalicylate

G. Smith, U. D. Wermuth and J. M. White

Abstract: The crystal structure of the 1:1 proton-transfer compound of 3,5-dinitrosalicylic acid with the optically active amine (S)-(-)-1-phenylethylamine, viz. (S)-(-)-1-phenylethylaminium 3,5-dinitrosalicylate, C₈H₁₂N⁺·C₇H₃N₂O₇^-, shows the presence of two pseudo-centrosymmetrically related and conformationally similar carboxylate anions and two chiral but conformationally different (S)-aminium cations in the crystallographic repeat unit. In these cations, the protonated amine-N atoms have a number of hydrogen-bonding associations with carboxyl, phenol and nitro O atoms of the acid [NO = 2.824 (4)-3.245 (5) Å]. These, together with peripheral hydrogen-bonding associations and some weak cation-anion - interactions, result in a three-dimensional network polymer structure.

Online 22 November 2003

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