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Acta Crystallogr Sect E Struct Rep Online. 2014 Apr 12;70(Pt 5):o551. doi: 10.1107/S1600536814007363. eCollection 2014 May 1.

(E)-3-Isopropyl-1-methyl-2,6-di-phenyl-piperidin-4-one O-nicotinoyl oxime.

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Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Maraimalai Campus (Guindy Campus), Chennai 600 025, India.
Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram 608 002, India.


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.

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