2-(2-Amino-4-nitrophenyl)-7-nitro-4H-3,1-benzoxazin-4-one

In the title compound, C14H8N4O6, the benzoxazin-4-one fused-ring system (r.m.s. deviation = 0.018 Å) is coplanar with the attached benzene ring [dihedral angle = 0.81 (4)°], there being an intramolecular N—H...N hydrogen bond between them. Each nitro group is twisted out of the plane of the attache...

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Bibliographic Details
Main Authors: Edward R. T. Tiekink, James L. Wardell
Format: Article
Language:English
Published: International Union of Crystallography 2014-02-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536814000609
Description
Summary:In the title compound, C14H8N4O6, the benzoxazin-4-one fused-ring system (r.m.s. deviation = 0.018 Å) is coplanar with the attached benzene ring [dihedral angle = 0.81 (4)°], there being an intramolecular N—H...N hydrogen bond between them. Each nitro group is twisted out of the plane of the attached benzene ring [O—N—C—C torsion angles = 167.94 (11) and 170.38 (11)°]. In the crystal, amine–nitro N—H...O hydrogen bonds lead to centrosymmetric dimeric aggregates that are connected into a three-dimensional architecture by oxazinyl–nitro C—H...O and π–π interactions [inter-centroid distance between the oxazinyl and terminal benzene rings = 3.5069 (7) Å].
ISSN:1600-5368