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

Acta Crystallogr E Crystallogr Commun. 2022 Apr 28;78(Pt 5):530-535. doi: 10.1107/S2056989022004388. eCollection 2022 May 1.

Abstract

In the title compound, C14H8Br2FN3O2, the 4-fluoro-phenyl ring and the nitro-substituted phenyl ring form a dihedral angle of 64.37 (10)°. Mol-ecules in the crystal are connected by C-H⋯O and C-H⋯F hydrogen bonds into layers parallel to (011). The crystal packing is consolidated by C-Br⋯π and C-F⋯π inter-actions, as well as by π-π stacking inter-actions. According to a Hirshfeld surface analysis of the crystal structure, the most significant contributions to the crystal packing are from O⋯H/H⋯O (15.0%), H⋯H (14.3%), Br⋯H/H⋯Br (14.2%), C⋯H/H⋯C (10.1%), F⋯H/H⋯F (7.9%), Br⋯Br (7.2%) and Br⋯C/C⋯Br (5.8%) contacts.

Keywords: C—Br⋯π inter­actions; C—F⋯π inter­actions; C—H⋯F hydrogen bonds; C—H⋯O hydrogen bonds; Hirshfeld surface analysis; crystal structure; π–π stacking inter­actions.

Grants and funding

This work was performed under the support of the Science Development Foundation under the President of the Republic of Azerbaijan (grant No. EIF-BGM-4-RFTF-1/2017–21/13/4).