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1-(2,6-Di­fluoro­benzoyl)-3-[4-(tri­fluoro­methyl)­phenyl]­urea

✍ Scribed by Chen, Li ;Song, Hai-Bin ;Wang, Qing-Min ;Huang, Run-Qiu ;Shang, Jian ;Mao, Chun-Hui

Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
224 KB
Volume
60
Category
Article
ISSN
1600-5368

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✦ Synopsis

All bond lengths and anlges in the title compound, C 15 H 9 F 5 N 2 O 2 , an inhibitor of chitin synthesis, are normal. The urea linkage adopts an essentially planar con®guration, with an intramolecular NÐHÁ Á ÁO hydrogen bond. Intermolecular NÐHÁ Á ÁO hydrogen bonds link two adjacent molecules into a centrosymmetric dimer.

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4-(2-Methyl­prop-2-enyl)-1-[3-(tri­fluor
4-(2-Methyl­prop-2-enyl)-1-[3-(tri­fluoro­methyl)­phenyl]­thio­semicarbazide
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The title compound, C 12 H 14 F 3 N 3 S, is a biologically active antiimplantation agent. Its crystal structure is stabilized by intermolecular NÐHÁ Á ÁS hydrogen bonds, which form dimers in a head-to-tail arrangement and link them into a polymeric chain.

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Single-crystal X-ray study T = 160 K Mean '(C±C) = 0.007 A Ê R factor = 0.090 wR factor = 0.279 Data-to-parameter ratio = 10.0 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

[3,5-Bis­(tri­fluoro­methyl)­phenyl]{(E)
[3,5-Bis­(tri­fluoro­methyl)­phenyl]{(E)-2-[(E)-3,5-bis­(tri­fluoro­methyl)­phenyl­imino]-1-methyl­propyl­idene}amine
✍ Aberdeen, Helen L. ;Allan, Robert E. ;Crane, Jonathan D. 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 384 KB

Single-crystal X-ray study T = 150 K Mean '(C±C) = 0.002 A Ê Disorder in main residue R factor = 0.059 wR factor = 0.192 Data-to-parameter ratio = 21.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.