(IUCr) Crystallography Journals Online

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Acta Cryst. (2004). E60, o2306-o2308 [ doi:10.1107/S160053680402851X ]

N-Cyclohexyl-2-oxo-2H-1-benzopyran-3-carboxamide

N. E. Magaña-Vergara, F. J. Martínez-Martínez, I. I. Padilla-Martínez, H. Höpfl and E. V. García-Báez

Abstract: The title compound, C₁₆H₁₇NO₃, crystallizes in the space group P $\overline 1$ , with one molecule in the asymmetric unit. The amide H atom is engaged in an intramolecular N-HO contact to the O atom of one of the two carbonyl groups. The molecules form centrosymmetric dimers through self-complementary C-HO hydrogen-bonding interactions defining the R₂²(14)[R₂¹(6)] motif. The supramolecular structure is achieved by aryl C-H [pi] interactions, as well as face-to-face [pi] - [pi] stacking interactions between lactone and benzenoid rings.

Online 13 November 2004