Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 8 (August 2013)


organic compounds



gk2577 scheme

Acta Cryst. (2013). E69, o1357-o1358    [ doi:10.1107/S160053681302062X ]

Quinoline-2-sulfonamide

K. Marciniec, A. Maslankiewicz, J. Kusz and M. Nowak

Abstract: In the title compound, C9H8N2O2S, the sulfamoyl -NH2 group is involved in intermolecular hydrogen bonding with the sulfonamide O and quinoline N atoms. In the crystal, molecules are linked into dimers via pairs of N-H...N hydrogen bonds, forming an R22(10) motif. The dimers are further assembled into chains parallel to the b axis through N-H...O hydrogen bonds, generating a C(4) motif. The crystal packing is additionally stabilized by intermolecular C-H...O interactions. The crystal studied was a non-merohedral twin with a domain ratio of 0.938 (2):0.062 (2). Density functional theory (DFT) calculations, at the B3LYP/6-31 G(d,p) level of theory, were used to optimize the molecular structure and to determine interaction energies for the title compound. The resulting interaction energy is ~4.4 kcal mol-1 per bridge for the C(4) chain and ~5.9 kcal mol-1 per bridge for the R22(10) motif.


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