ÁBr À , is a salt comprising monoprotonated 2-bromo-1,3-dipyrrolidin-1-ylpropane-1,3-dione cations and bromide anions. In the cation, the acidic proton is intramolecularly hydrogen-bonded between the carbonyl O atoms and the positive charge is delocalized over both amide groups.
3-BROMO-1,1,1-TRIFLUORO-PROPANE-2-OXIME AND TRIETHYLPHOSPHITE
✍ Scribed by Hund, Heike; Röschenthaler, Gerd-Volker
- Book ID
- 121275817
- Publisher
- Taylor and Francis Group
- Year
- 1996
- Tongue
- English
- Weight
- 205 KB
- Volume
- 119
- Category
- Article
- ISSN
- 1042-6507
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📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 298 K Mean '(C±C) = 0.005 A Ê R factor = 0.031 wR factor = 0.085 Data-to-parameter ratio = 8.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
Br 3 FOS, a chalcone derivative, are in the normal ranges. The bromo substituents at the central C-C single bond are trans to each other.
In the title molecule, C 9 H 8 NO 2 Cl, the dihedral angle between the aromatic ring and propan-2-one oxime moiety is 54.05 (4) . In the crystal structure, the molecules exist as OÐHÁ Á ÁN hydrogen-bonded dimers around the inversion centres.
In the title molecule, C~16~H~11~Br~3~Cl~2~O~2~, the chain Br atoms are in __trans__ positions [Br—C—C—Br torsion angle is 179.0 (2)°]. The two benzene rings make a dihedral angle of 39.54 (15)°. The crystal packing is determined by van der Waals forces; some weak π–π interactions between the benzen