Acta Cryst. (2005). C61, o270-o275  [ doi:10.1107/S0108270105007547 ]

2-(2-Acetylamino-5-chlorophenyl)-2,2-difluoroethanoic acid and 2-(2-acetylamino-5-methylphenyl)-2,2-difluoroethanoic acid, and 2-(2-acetylaminophenyl)-2,2-difluoro-N-phenylacetamide and 2-(2-acetylaminophenyl)-N-(4-chlorophenyl)-2,2-difluoroacetamide: examples of variation in molecular packing and hydrogen-bonding motif induced by substituent change

N. Boechat, L. C. Maciel, A. C. Pinto, S. M. S. V. Wardell, J. M. S. Skakle and R. A. Howie

Formula: C₁₀H₈ClF₂NO₃, C₁₁H₁₁F₂NO₃, C₁₆H₁₄F₂N₂O₂ and C₁₆H₁₃ClF₂N₂O₂

Online 2 April 2005

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