Disordered crystal structure of chlorodifluoroacetamide

The crystal structure of chlorodifluoroacetamide has been determined from three-dimensional counter data, and refined by full-matrix least-squares techniques. The crystals belong to the monoclinic space groupP2₁/n witha = 7.401(6),b = 8.123(6),c = 8.431(6) Å, = 104.48(5) °, andD = 1.52 gcm^–3 forZ = 4. The finalR factor for 650 observed reflections is 0.059. The compound exists with a rotational disorder in the -CClF₂ group about the C-C bond. The occupancy factors for the major and minor conformations are 0.74 and 0.24, respectively.