In the title molecule, C~17~H~10~F~5~N~5~O~2~, all bond lengths and angles show normal values. Weak intermolecular C—H...O hydrogen bonds and π–π stacking interactions stabilize the crystal packing.
(E,E,E)-1,6-Bis(4-nitrophenyl)hexa-1,3,5-triene
✍ Scribed by Sonoda, Yoriko ;Kawanishi, Yuji ;Goto, Midori
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 261 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
In the title compound, C 18 H 14 N 2 O 4 , the torsion angles of the single bonds between the hexatriene chain and 4-nitrophenyl rings are 18.0 (2) and À0.7 (2) . The molecules are linked weakly via intermolecular C-HÁ Á ÁO hydrogen bonds to form sheets. These sheets are linked further by NÁ Á ÁO dipole interactions between the nitro groups and aromaticstacking interactions, to form a three-dimensional framework.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 290 K Mean (C-C) = 0.005 A R factor = 0.062 wR factor = 0.143 Data-to-parameter ratio = 12.2 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
The title molecule, C 16 H 13 NO 4 , crystallizes with two molecules in the asymmetric unit. The dihedral angles between the two benzene rings are 5.1 (2) and 6.2 (2) .
In the approximately planar molecule of the title compound, C 15 H 10 BrNO 3 , the dihedral angle between the two benzene rings is 4.97 (18) . Intermolecular C-HÁ Á ÁO interactions help to form chains of molecules in the crystal structure.
In the the title compound, C 23 H 17 Br 2 NO 4 , the two bromophenyl rings are almost coplanar, and perpendicular to the nitrophenyl ring. The carbonyl groups are coplanar with their adjacent bromophenyl rings.