title: Crystal structure of 2-{[(E)-(4-anilinophen-yl)iminium-yl]meth-yl}-5-(di-ethyl-amino)-phenolate.
abstract: The title compound, C23H25N3O, crystallized with one single mol-ecule in the asymmetric unit and is present in the zwitterionic form. There is an intra-molecular N-H⋯O hydrogen bond in the mol-ecule with the phenol ring being inclined to the central benzene ring by 20.67 (14)°. The terminal amino-phenyl ring forms a dihedral angle of 54.21 (14)° with the central benzene ring. The two outer aromatic rings are inclined to one another by 74.54 (14)°. In the crystal, the mol-ecules are connected by N-H⋯O hydrogen bonds, with adjacent molecules related by a 21 screw axis, generating -A-B-A-B- zigzag chains extending along [010]. The chains are linked via C-H⋯π and π-π inter-actions [with a centroid-centroid distance of 3.444 (3) Å] between the benzene ring and the imino group of symmetry-related mol-ecules, forming slabs lying parallel to (100).
authors: Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, UP 208 016, India.
authors: Md Serajul Haque
authors: MS
authors: Faizi
authors: National Taras Shevchenko University, Department of Chemistry, Volodymyrska str. 64, 01601 Kyiv, Ukraine.
authors: Kateryna A
authors: KA
authors: Ohui
authors: National Taras Shevchenko University, Department of Chemistry, Volodymyrska str. 64, 01601 Kyiv, Ukraine.
authors: Irina A
authors: IA
authors: Golenya
keywords: DPIM; N-phenyl-p-phenyl­enedi­amine; Schiff base; crystal structure; hydrogen bonding; zwitterion