title: Crystal structure of (R)-N-benzyl-1-phenylethanaminium (R)-4-chloro-mandelate.
abstract: The absolute configuration of the title mol-ecular salt, C15H18N(+)·C8H6ClO3 (-), has been confirmed by resonant scattering. In the (R)-N-benzyl-1-phenyl-ethyl-ammonium cation, the phenyl rings are inclined to one another by 44.65 (7)°. In the crystal, the (R)-4-chloro-mandelate anions are linked via O-H⋯O hydrogen bonds and bridged by N-H⋯O hydrogen bonds involving the cations, forming chains along [010]. There are C-H⋯O hydrogen bonds present within the chains, which are linked via C-H⋯π inter-actions and a short Cl⋯Cl inter-action [3.193 (1) Å] forming a three-dimensional framework. The structure was refined as a two-component inversion twin giving a Flack parameter of 0.05 (4).
authors.affiliation: School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
authors.forename: Yangfeng
authors.initials: Y
authors.lastname: Peng
authors.affiliation: Department of Chemical and Biochemical Engineering, Western University, London, Ontario, N6A 5B9, Canada.
authors.forename: Sohrab
authors.initials: S
authors.lastname: Rohani
authors.affiliation: Department of Chemical and Biochemical Engineering, Western University, London, Ontario, N6A 5B9, Canada.
authors.forename: Paul D
authors.initials: PD
authors.lastname: Boyle
authors.affiliation: Department of Engineering, Faculty of Agriculture, Dalhousie University, Truro, NovaScotia, B2N 5E3, Canada.
authors.forename: Quan
authors.initials: Q
authors.lastname: He
keywords: 4-chloro­mandelate; Cl⋯Cl inter­action; Crystal structure; C—H⋯π inter­actions; absolute structure; diastereomeric salt; hydrogen bonding; resolution; resonant scattering