1,3-Dicyclohexylimidazolidine-2,4,5-trione: a second polymorph

  title={1,3-Dicyclohexylimidazolidine-2,4,5-trione: a second polymorph},
  author={Oualid Talhi and Jos{\'e} A Fernandes and D. Pinto and Artur M. S. Silva and F. A. Almeida Paz},
  journal={Acta Crystallographica Section E: Structure Reports Online},
  pages={o3233 - o3234}
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… Expand


A short history of SHELX.
  • G. Sheldrick
  • Medicine, Chemistry
  • Acta crystallographica. Section A, Foundations of crystallography
  • 2008
This paper could serve as a general literature citation when one or more of the open-source SH ELX programs (and the Bruker AXS version SHELXTL) are employed in the course of a crystal-structure determination. Expand
  • Crystal Impact GbR, Bonn, Germany. Bruker (2005). SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA. Bruker (2006). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA.
  • 2009
Acta Cryst
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  • 2008
SADABS. University of Gö ttingen
  • Acta Cryst
  • 1998
Acta Cryst
  • E67, o2075–o2076. Sheldrick, G. M. (1998). SADABS. University of Göttingen, Germany.
  • 2011
Acta Cryst
  • E67, o3243. Ulrichan, H. & Sayigh, D. A. A. R. (1965). J. Org. Chem. 30, 2781–2783.
  • 2011
Acta Cryst
  • C67, o57–o59. Loughzail, M., Fernandes, J. A., Baouid, A., Essaber, M., Cavaleiro, J. A. S. &
  • 2011
) C15-C10-C11-C12 58.05 (14) C2-C3-N2-C4 174
  • N1-C10-C11-C12 −177.09 (10) O3-C3-N2-C4 −
Hydrogen-bond geometry (Å, º)