α,α,α,2,3,4,5,6-Octafluoroacetanilide

Article abstract of DOI:10.1107/S0108270196005689

Acetanilide and its derivatives have been the subject of some interest because of certain anomalous properties of the vibrational spectrum of the amide group. In the title compound, C₈HF₈NO, the molecules are linked through N-H···O hydrogen bonds, with an intermolecular N···O distance of 2.894 (9) angstroms. They form chains parallel to the b axis which are stacked one on top of another in the c direction.