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. 2010 May 26;66(Pt 6):o1469.
doi: 10.1107/S1600536810017940.

3-Phenyl-1H-pyrrolo[2,1-c][1,4]oxazin-1-one

Salman Tariq Khan, Peng Yu, Suchada Chantrapromma, Yong-En Guo, Nighat Afza

3-Phenyl-1H-pyrrolo[2,1-c][1,4]oxazin-1-one

Salman Tariq Khan et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The mol-ecule of the title compound, C(13)H(9)NO(2), is slightly twisted with a dihedral angle of 4.85 (9)° between the nine-membered ring system and the phenyl ring. The nine non-H atoms of the 1H-pyrrolo[2,1-c][1,4]oxazin-1-one system are coplanar [r.m.s. deviation = 0.0122 (2) Å]. In the crystal, weak inter-molecular C-H⋯O inter-actions link mol-ecules into chains along [10]. The crystal studied was an inversion twin with a 0.48624 (9):0.51376 (9) domain ratio.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title compound, showing 50% probability displacement ellipsoids and the atom-numbering scheme.
Fig. 2.
Fig. 2.
The crystal packing of the title compound viewd along the b axis. Intermoilecular C—H···O interactions are drawn as dashed lines.
See this image and copyright information in PMC

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