Crystal structure and Hirshfeld surface analysis of (E)-1-[2,2-di-chloro-1-(4-fluoro-phen-yl)ethen-yl]-2-(2,4-di-chloro-phen-yl)diazene

Acta Crystallogr E Crystallogr Commun. 2021 Oct 26;77(Pt 11):1158-1163. doi: 10.1107/S2056989021010756. eCollection 2021 Nov 1.

Abstract

In the title compound, C14H7Cl4FN2, the dihedral angle between the 4-fluoro-phenyl ring and the 2,4-di-chloro-phenyl ring is 46.03 (19)°. In the crystal, the mol-ecules are linked by C-H⋯N inter-actions along the a-axis direction, forming a C(6) chain. The mol-ecules are further connected by C-Cl⋯π inter-actions and face-to-face π-π stacking inter-actions, forming ribbons along the a-axis direction. Hirshfeld surface analysis indicates that the greatest contributions to the crystal packing are from Cl⋯H/H⋯Cl (35.1%), H⋯H (10.6%), C⋯C (9.7%), Cl⋯Cl (9.4%) and C⋯H/H⋯C (9.2%) inter-actions.

Keywords: C—Cl⋯π inter­actions; Hirshfeld surface analysis; crystal structure; face-to-face π–π stacking inter­actions; short inter HL⋯HL contact.

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.