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article · Acta Crystallographica Section E Crystallographic Communications

Crystal structure and Hirshfeld surface analysis of 4-benzyl-2<i>H</i>-benzo[<i>b</i>][1,4]oxazin-3(4<i>H</i>)-one

2025Open accessMohammed V University

Abstract

The mol-ecule of the title compound, C<sub>15</sub>H<sub>13</sub>NO<sub>2</sub>, comprises a non-planar oxazine ring (twisted-boat conformation) fused to a benzene ring, and a benzyl moiety. In the crystal, C-H⋯O hydrogen bonds link the mol-ecules into [010] supra-molecular chains, enclosing <i>R</i> <sub>2</sub> <sup>2</sup>(9) ring motifs. C-H⋯π inter-actions and very weak π-π stacking between the benzene rings of adjacent mol-ecules help to consolidate the packing. A Hirshfeld surface analysis revealed that the most important contributions to the crystal packing are from H⋯H (48.8%), H⋯ C/C⋯H (29.3%) and H⋯O/O⋯H (18.9%) inter-actions.

Research topics

  • Phenothiazines and Benzothiazines Synthesis and Activities
  • Synthesis and Reactions of Organic Compounds
  • Axial and Atropisomeric Chirality Synthesis

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DOI: 10.1107/s2056989025007686

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