The title compound, C~20~H~28~N~2~O~2~, and __N__,__N__′-dicyclohexyl-__N__-(2-pyrazinoyl)urea are isostructural. Molecules are linked into chains through (amide)N—H...O=C(amide) intermolecular hydrogen bonds.
N,N′-Dicyclohexyl-N-(2-pyrazinoyl)urea
✍ Scribed by Chérioux, Frédéric ;Therrien, Bruno ;Stoeckli-Evans, Helen ;Süss-Fink, Georg
- Publisher
- International Union of Crystallography
- Year
- 2001
- Tongue
- English
- Weight
- 285 KB
- Volume
- 58
- Category
- Article
- ISSN
- 1600-5368
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The title compound, [CuCl 2 (C 11 H 24 N 2 )], crystallizes as fourcoordinate monomers with distorted square-planar geometry. The complex is chiral and forms racemic crystals. Molecules which have an S-con®guration at nitrogen have a !conformation of the ®ve-membered chelate ring, and those with R-c
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê R factor = 0.032 wR factor = 0.081 Data-to-parameter ratio = 23.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
resulting white precipitate was ®ltered, washed with cold ethanol and dried in vacuo. Crystals suitable for X-ray analysis were obtained by recrystallization from a 1:1 mixture of ethanol and chloroform.
The title compound, [Sn(C 6 H 5 ) 3 {S 2 CN(Et)C 6 H 11 }], has a similar geometry to its methyl analogue, between tetrahedral and distorted trigonal bipyramidal but closer to the latter. The long intramolecular SnÁ Á ÁS interaction of 2.9426 (10) A Ê is slightly shorter than in its methyl analogue,