Acta Cryst. (2010). E66, o163-o164  [ doi:10.1107/S1600536809053410 ]

Gabapentin-lactum-chloranilic acid (1/1)

J. P. Jasinski, R. J. Butcher, Q. N. M. Hakim Al-arique, H. S. Yathirajan and B. Narayana

Abstract: In the title compound, C₉H₁₅NO·C₆H₂Cl₂O₄ [sytematic name: 2-azaspiro[4.5]decan-3-one-chloranilic acid (1/1)], the cyclohexane ring of the lactam molecule adopts a slightly distorted normal chair conformation and the five-membered 3-azaspiro ring is in a slightly distorted chair conformation. The dihedral angle between the least-squares planes of the cyclohexane and 3-azaspiro rings is 84.0 (3)°. In the crystal, the chloranilic acid molecule and the gabapentin-lactum molecules are held together by strong intermolecular N-HO and O-HO hydrogen bonds with two bifurcated O acceptor atoms on the chloranilic acid molecule and one on the gabapentin-lactum molecule, each bonding with an inter- and intramolecular hydrogen bond. The molecules are linked into chains parallel to (011) and propagating along the b axis.

Online 16 December 2009

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