title: (E)-3-Isopropyl-1-methyl-2,6-di-phenyl-piperidin-4-one O-nicotinoyl oxime.
abstract: In the title compound, C27H29N3O2, the piperidine ring exists in a chair conformation with an equatorial orientation of the phenyl and methyl substituents. The C-C=N bond angles are significantly different [119.1 (2) and 127.2 (2)°]. The phenyl rings are inclined to one another by 44.90 (14)°, and by 80.85 (13) and 79.62 (12)° to the mean plane of the piperidine ring. The terminal pyridine ring is inclined to the piperidine ring mean plane by 74.79 (15)°. In the crystal, mol-ecules are linked by C-H⋯π inter-actions, forming a three-dimensional network.
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Maraimalai Campus (Guindy Campus), Chennai 600 025, India.
authors.forename: T
authors.initials: T
authors.lastname: Vinuchakkaravarthy
authors.affiliation: Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram 608 002, India.
authors.forename: R
authors.initials: R
authors.lastname: Sivakumar
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Maraimalai Campus (Guindy Campus), Chennai 600 025, India.
authors.forename: T
authors.initials: T
authors.lastname: Srinivasan
authors.affiliation: Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram 608 002, India.
authors.forename: V
authors.initials: V
authors.lastname: Thanikachalam
authors.affiliation: Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Maraimalai Campus (Guindy Campus), Chennai 600 025, India.
authors.forename: D
authors.initials: D
authors.lastname: Velmurugan