Crystal structure and Hirshfeld surface analysis of 1,3-bis-{2,2-di-chloro-1-[(E)-phenyl-diazen-yl]ethen-yl}benzene

Acta Crystallogr E Crystallogr Commun. 2021 Jul 16;77(Pt 8):814-818. doi: 10.1107/S2056989021007192. eCollection 2021 Aug 1.

Abstract

In the mol-ecule of the title compound, C22H14Cl4N4, the central benzene ring makes dihedral angles of 77.03 (9) and 81.42 (9)° with the two approximately planar 2,2-di-chloro-1-[(E)-phenyl-diazen-yl]vinyl groups. In the crystal, mol-ecules are linked by C-H⋯π, C-Cl⋯π, Cl⋯Cl and Cl⋯H inter-actions, forming a three-dimensional network. The Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H⋯H (30.4%), C⋯H/H⋯C (20.4%), Cl⋯H/H⋯Cl (19.4%), Cl⋯Cl (7.8%) and Cl⋯C/C⋯Cl (7.3%) inter-actions.

Keywords: Cl⋯Cl; Cl⋯H inter­actions; C—Cl⋯π; C—H⋯π; Hirshfeld surface analysis; crystal structure.

Grants and funding

This work was funded by Science Development Foundation under the President of the Republic of Azerbaijan grant EIF-BGM-4- RFTF-1/2017–21/13/4.