Acta Cryst. (2012). E68, o3233-o3234 [ doi:10.1107/S1600536812043619 ]
Abstract: The title compound, C15H22N2O3, was obtained as a by-product of oxidative cleavage of 1,3-dicyclohexyl-(3-oxo-2,3-dihydrobenzofuran-2-yl)imidazolidine-2,4-dione. Herein, we report the crystal structure of a second polymorph, which was obtained by crystallization from an ethanol solution at 253 K, instead of slow evaporation of the same solvent at room temperature. While the first polymorph [Talhi et al. (2011). Acta Cryst. E67, o3243] crystallized in the non-centrosymmetric space group P212121, this second polymorph crystallizes in the centrosymmetric space group P21/n. Compared to the first polymorph, in the crystal no C=O
C=O interactions were found (CO intermolecular distance longer than 3.15 Å) and instead, close packing of individual molecular units is mediated by C-H![[pi]](/logos/entities/pi_rmgif.gif)
and weak C-HO interactions.
 |   Hyper-Text Markup Language (HTML) file |
 | Chemdraw file (2.9 kbytes) |
 | Chemical Markup Language (CML) file (6.0 kbytes) |
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.
Copyright © International Union of Crystallography
IUCr Webmaster