title: Crystal structure of 2,4-bis-(2-chloro-phen-yl)-7-tert-pent-yl-3-aza-bicyclo[3.3.1]nonan-9-one.
abstract: The title compound, C25H29Cl2NO, which is a chloro analog of 2,4-bis-(2-bromo-phen-yl)-7-(tert-pent-yl)-3-aza-bicyclo-[3.3.1]nonan-9-one [Park, Ramkumar & Parthiban (2012). Acta Cryst. E68, o2946], exists in a twin-chair conformation with an equatorial orientation of the 2-chloro-phenyl groups. The tert-pentyl group on the cyclo-hexa-none adopts an exocyclic equatorial position and is disordered between two orientations in a ratio 0.520 (8):0.480 (8). The crystal packing shows no directional contacts beyond van der Waals contacts.
authors.affiliation: Department of Biomedicinal Chemistry, Inje University, Gimhae, Gyeongnam 621 749, Republic of Korea.
authors.forename: Dong Ho
authors.initials: DH
authors.lastname: Park
authors.affiliation: Department of Chemistry, IIT Madras, Chennai 600 036, TamilNadu, India.
authors.forename: V
authors.initials: V
authors.lastname: Ramkumar
authors.affiliation: Department of Biomedicinal Chemistry, Inje University, Gimhae, Gyeongnam 621 749, Republic of Korea ; Department of Chemistry, VEL TECH, Avadi, Chennai 600 062, India.
authors.forename: P
authors.initials: P
authors.lastname: Parthiban
keywords: Mannich base; aza­bicycle; crystal structure; twin-chair conformation