Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 2 (February 2013)


organic compounds



ff2093 scheme

Acta Cryst. (2013). E69, o152    [ doi:10.1107/S1600536812051288 ]

A second monoclinic polymorph of N-(2,4-dinitrophenyl)-2,4-dinitroaniline

Y. Tokutome and T. Okuno

Abstract: The title compound, C12H7N5O8, was previously described in space group P21/n with Z = 4 [Wu et al. (2007). Acta Cryst. E63, o4194]. The current monoclinic P21/c polymorph was obtained from a mixed solution of dichloromethane and hexane. The dihedral angle between the benzene rings is 44.16 (5)°, smaller than in the previously reported polymorph [56.3 (2)°]. As a result of the steric hinderance of the nitro groups, hydrogen bonding is limited intramolecularly. The dihedral angles between the phenyl rings and their attached nitro groups are 18.97 (6) and 17.71 (5)° at the 2-position, and 18.52 (6) and 32.41 (6)° at the 4-position.


htmldisplay filedownload file

Hyper-Text Markup Language (HTML) file
[ doi:10.1107/S1600536812051288/ff2093sup0.html ]
Supplementary materials


cmldisplay filedownload file

Chemical Markup Language (CML) file (5.6 kbytes)
[ doi:10.1107/S1600536812051288/ff2093Isup3.cml ]
Supplementary material


Notes:

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