Crystal structure and Hirshfeld surface analysis of a pyridiniminium bromide salt: 1-[2-([1,1′-biphen­yl]-4-yl)-2-oxoeth­yl]-3-methyl-1,4-di­hydro­pyridin-4-iminium bromide

Acta Crystallographica Section E: Crystallographic Communications

Kwong, H.C.¹  Siddaraju, B.P.²  Hamid, M.A.B.A.³  Sheshadri, S.N.⁴  Warad, I.⁶  Quah, C.K.⁷  Chidan Kumar, C.S.⁸  Veeraiah, M.K.⁹ 

[1] Technology for Women, Mysuru 570 016, Karnataka, India;Technology, Visvesvaraya Technological University, Alanahally, Mysuru 570 028, Karnataka, India;Department of Chemistry, Cauvery Institute of Technology, Mandya 571 402, Karnataka, India;Department of Chemistry, GSSS Institute of Engineering &Department of Chemistry, Science College, An-Najah National University, PO Box 7, Nablus, West Bank, Palestinian Territories;Department of Chemistry, Sri Siddhartha Institute of Technology, Tumkur 572 105, Karnataka, India;Department of Engineering Chemistry, Vidya Vikas Institute of Engineering &School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800 USM, Malaysia;X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia

关键词: CRYSTAL STRUCTURE;    IONIC LIQUIDS;    PYRIDINIMINIUM SALT;    HYDROGEN BONDING;    HIRSHFELD SURFACE ANALYSIS;   

DOI  :  10.1107/S2056989018006217

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the cation of the title salt, C20H19N2O+·Br−, the phenyl rings are inclined to one another by 38.38 (8)°, whereas the central phenyl ring and the pyridiniminium ring are almost perpendicular with a dihedral angle of 87.37 (9)°. The N+=C cationic double bond was verified by the shortened bond length of 1.337 (2) Å. In the crystal, the Br− anion is linked to the cation by an N—H⋯Br hydrogen bond. C—H⋯O hydrogen bonds link adjacent pyridiniminium cations into inversion dimers with an R22(18) graph-set motif. These dimers are stacked in a phen­yl–phenyl T-shaped geometry through C—H⋯π inter­actions. A Hirshfeld surface analysis was conducted to verify the contributions of the different inter­molecular inter­actions.

【 授权许可】

CC BY