Abstract
The structure of the title compound, C11H7NO2, is isotypic to that of its homologue, 1-octylindoline-2,3-dione [Qachchachi et al. (2013 ▶). Acta Cryst. E69, o1801]. The indoline ring and the two carbonyl O atoms are approximately coplanar, the largest deviation from the mean plane being 0.021 (1) Å for one of the O atoms. The mean plane through the fused ring system is nearly perpendicular to the propynyl group, as indicated by the N—C—C—C torsion angle of 77.9 (1)°. In the crystal, molecules are linked by C—H⋯O hydrogen bonds and π–π interactions between benzene rings [intercentroid distance = 3.5630 (10) Å], forming a three-dimensional structure.
Highlights
The structure of the title compound, C11H7NO2, is isotypic to that of its homologue, 1-octylindoline-2,3-dione [Qachchachi et al (2013)
The mean plane through the fused ring system is nearly perpendicular to the propynyl group, as indicated by the N—C—C—C torsion angle of 77.9 (1)
Molecules are linked by C—HÁ Á ÁO hydrogen bonds and – interactions between benzene rings [intercentroid distance = 3.5630 (10) A ], forming a three-dimensional structure
Summary
Key indicators: single-crystal X-ray study; T = 123 K; mean (C–C) = 0.002 A; R factor = 0.037; wR factor = 0.094; data-to-parameter ratio = 12.8. The structure of the title compound, C11H7NO2, is isotypic to that of its homologue, 1-octylindoline-2,3-dione [Qachchachi et al (2013). The indoline ring and the two carbonyl O atoms are approximately coplanar, the largest deviation from the mean plane being 0.021 (1) Afor one of the O atoms. The mean plane through the fused ring system is nearly perpendicular to the propynyl group, as indicated by the N—C—C—C torsion angle of 77.9 (1). Molecules are linked by C—HÁ Á ÁO hydrogen bonds and – interactions between benzene rings [intercentroid distance = 3.5630 (10) A ], forming a three-dimensional structure
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