TY - JOUR
T1 - 2-[N-(2,4-Difluoro-phen-yl)carbamo-yl]-3,4,5,6-tetra-fluoro-benzoic acid
AU - Guo, Duoli
AU - Nichol, Gary S.
AU - Cain, James P.
AU - Yalkowsky, Samuel H.
PY - 2009
Y1 - 2009
N2 - The title compound, C14H5F6NO3, was synthesized by condensation of tetra-fluoro-phthalic anhydride and 2,4-difluoro-aniline. It was then recrystallized from hexane to give a nonmerohedral twin with two crystallographically unique mol-ecules in the asymmetric unit. The refined twin fraction is 0.460 (3). Torsional differences between the aryl rings and the central amide group account for the presence of two unique mol-ecules. The compound packs as double tapes formed by O- H⋯O and N- H⋯O hydrogen-bonding inter-actions between each unique mol-ecule and its symmetry equivalents.
AB - The title compound, C14H5F6NO3, was synthesized by condensation of tetra-fluoro-phthalic anhydride and 2,4-difluoro-aniline. It was then recrystallized from hexane to give a nonmerohedral twin with two crystallographically unique mol-ecules in the asymmetric unit. The refined twin fraction is 0.460 (3). Torsional differences between the aryl rings and the central amide group account for the presence of two unique mol-ecules. The compound packs as double tapes formed by O- H⋯O and N- H⋯O hydrogen-bonding inter-actions between each unique mol-ecule and its symmetry equivalents.
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U2 - 10.1107/S1600536809038306
DO - 10.1107/S1600536809038306
M3 - Article
C2 - 21578258
AN - SCOPUS:70449434350
VL - 65
SP - o2644
JO - Acta Crystallographica Section E: Structure Reports Online
JF - Acta Crystallographica Section E: Structure Reports Online
SN - 1600-5368
IS - 11
ER -