Crystal structure of 2-hydroxy-2-phenylaceto-phenone oxime

The title compound [systematic name: 2-(N-hydroxyimino)-1,2-diphenyl-ethanol], C14H13NO2, consists of hydroxy phenylacetophenone and oxime units, in which the phenyl rings are oriented at a dihedral angle of 80.54 (7)degrees. In the crystal, intermolecular O-H-Oxm center dot center dot center dot N-Oxm, O-H-Hydr center dot center dot center dot O-Hydr, O-H-Hydr'center dot center dot center dot O-Hydr and O-H-Oxm center dot center dot center dot O-Hydr hydrogen bonds link the molecules into infinite chains along the c-axis direction. pi-pi contacts between inversion-related of the phenyl ring adjacent to the oxime group have a centroid-centroid separation of 3.904 (3) angstrom and a weak C-H center dot center dot center dot pi(ring) interaction is also observed. A Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H center dot center dot center dot H (58.4%) and H center dot center dot center dot C/C center dot center dot center dot H (26.4%) contacts. Hydrogen bonding and van der Waals contacts are the dominant interactions in the crystal packing.

Automated summary

The compound consists of hydroxy phenylacetophenone and oxime units, with molecules linked into infinite chains through hydrogen bonds along the c-axis direction. Hydrogen bonding and van der Waals contacts play dominant roles in the crystal packing.