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1-Phenyl-1H-naphtho-[1,2-e][1,3]oxazin-3(2H)-one.

ABSTRACT: In the title compound, C(18)H(13)NO(2), the naphthalene (r.m.s. deviation = 0.025?Å) and benzaldehyde (r.m.s. deviation = 0.006?Å) groups are oriented at a dihedral angle of 89.48?(4)°. The oxazine group is oriented at dihedral angles of 13.36?(4) and 85.08?(5)°, respectively, with respect to the naphthalene and benzaldehyde fragments. In the crystal, inversion dimers linked by pairs of C-H?O hydrogen bonds generate R(2) (2)(8) loops. The dimers are linked into [010] chains via N-H?O hydrogen bonds. Weak C-H?? links and aromatic ?-? stacking between the centroids of the naphthalene phenyl rings [centroid-centroid separation = 3.5977?(8)?Å] help to consolidate the packing.

SUBMITTER: Gondal HY 

PROVIDER: S-EPMC2983264 | biostudies-literature | 2010 Sep

REPOSITORIES: biostudies-literature

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1-Phenyl-1H-naphtho-[1,2-e][1,3]oxazin-3(2H)-one.

Gondal Humaira Y HY   Bhatti Misbah M   Gohar Azra A   Ali Muhammad M   Tahir M Nawaz MN  

Acta crystallographica. Section E, Structure reports online 20100911 Pt 10

In the title compound, C(18)H(13)NO(2), the naphthalene (r.m.s. deviation = 0.025 Å) and benzaldehyde (r.m.s. deviation = 0.006 Å) groups are oriented at a dihedral angle of 89.48 (4)°. The oxazine group is oriented at dihedral angles of 13.36 (4) and 85.08 (5)°, respectively, with respect to the naphthalene and benzaldehyde fragments. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R(2) (2)(8) loops. The dimers are linked into [010] chains via N-H⋯O hydrogen bo  ...[more]

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