Crystal structure of (R)-N-benzyl-1-phenylethanaminium (R)-4-chloromandelate

Abstract

The absolute configuration of the title mol­ecular salt, C15H18N+·C8H6ClO3 −, has been confirmed by resonant scattering. In the (R)-N-benzyl-1-phenyl-ethyl­ammonium cation, the phenyl rings are inclined to one another by 44.65 (7)°. In the crystal, the (R)-4-chloro­mandelate 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 inter­actions and a short Cl⋯Cl inter­action [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).