Crystal structure and Hirshfeld surface analysis of (E)-4-{2,2-di-chloro-1-[(3,5-di-methyl-phen-yl)diazen-yl]ethen-yl}- N, N-di-methyl-aniline

Acta Crystallogr E Crystallogr Commun. 2020 Jul 10;76(Pt 8):1251-1254. doi: 10.1107/S2056989020009202. eCollection 2020 Aug 1.

Abstract

In the title compound, C18H19Cl2N3, the planes of the benzene rings subtend a dihedral angle of 77.07 (10)°. In the crystal, mol-ecules are associated into inversion dimers via short Cl⋯Cl contacts [3.3763 (9) Å]. A Hirshfeld surface analysis indicates that the most important contact percentages for the different types of inter-actions are H⋯H (43.9%), Cl⋯H/H⋯Cl (22.9%), C⋯H/H⋯C (20.8%) and N⋯H/H⋯N (8.0%).

Keywords: Cl⋯Cl halogen bonds; Hirshfeld surface analysis; crystal structure.

Grants and funding

This work was funded by Science Development Foundation of the Republic of Azerbaijan grant EIF– BGM-4-RFTF-1/2017–21/13/4. Russian Foundation for Basic Research grant 18–53–06006.