Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 7 (July 2013)

organic compounds

Acta Cryst. (2013). E69, o1175-o1176    [ doi:10.1107/S1600536813017261 ]


H. Bougueria, M. A. Benaouida, S. Bouacida and A. el kader Bouchoul

Abstract: There are two independent zwitterion mol­ecules (A and B) in the asymmetric unit of the title compound, C17H11N3O, which belongs to the family of azo dyes. The dihedral angle between the benzene ring and the naphthalene ring system is 6.99 (6)° in mol­ecule A and 4.38 (6)° in mol­ecule B. The azo group adopts an E conformation with respect to the -N=N- bond and each of the independent mol­ecules has an intra­molecular N-H...O hydrogen bond. In the crystal, mol­ecules are linked by C-H...O and C-H...N hydrogen bonds, forming ribbons propagating along [-110]. The ribbons are linked via [pi]-[pi] inter­actions involving the benzene and naphthalene rings of inversion-related A and inversion-related B mol­ecules, forming a three-dimensional structure. The most significant centroid-centroid distances vary from 3.6599 (6) to 3.7538 (9) Å.

htmldisplay filedownload file

Hyper-Text Markup Language (HTML) file
[ doi:10.1107/S1600536813017261/su2616sup0.html ]
Supplementary materials

cmldisplay filedownload file

Chemical Markup Language (CML) file
[ doi:10.1107/S1600536813017261/su2616Isup3.cml ]
Supplementary material


To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster