[alpha],[alpha],[alpha],2,3,4,5,6-Octafluoroacetanilide

Acetanilide and its derivatives have been the subject of some interest because of certain anomalous properties of the vibrational spectrum of the amide group [Careri, Buontempo, Galluzi, Scott & Shyamsunder (1984). Phys. Rev. B, 30, 4689-4702; Barthes (1995). Nonlinear Excitations in Biomolecules, edited by M. Peyrard, pp. 209-221. Berlin: Springer]. In the title compound, C₈HF₈NO, the molecules are linked through N-H...O hydrogen bonds, with an N...O intermolecular distance of 2.894 (3) Å. They form chains parallel to the b axis which are stacked one on top of another in the c direction.

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