Crystal structure and Hirshfeld surface analysis of a new polymorph of (E)-2-(4-bromophenyl)-1-[2,2-dibromo-1-(3-nitrophenyl)ethenyl]diazene

Autor: Atioğlu, Zeliha, Akkurt, Mehmet, Shikhaliyev, Namiq Q., Mammadova, N. A., Mammadova, Naila A., Babayeva, Gülnara V., Khrustalev, Victor N., Bhattarai, Ajaya
Přispěvatelé: Kapadokya Üniversitesi, Uygulamalı Bilimler Yüksekokulu, Havacılık Elektrik ve Elektroniği Bölümü, Atioğlu, Zeliha
Rok vydání: 2022
Předmět:
Zdroj: Acta Crystallographica Section E Crystallographic Communications. 78:804-808
ISSN: 2056-9890
Popis: A new polymorph of the title compound, C14H8Br3N3O2, (form-2) was obtained in the same manner as the previously reported form-1 [Akkurt et al. (2022). Acta Cryst. E78, 732–736]. The structure of the new polymorph is stabilized by a C—H...O hydrogen bond that links molecules into chains. These chains are linked by face-to-face π–π stacking interactions, resulting in a layered structure. Short inter-molecular Br...O contacts and van der Waals interactions between the layers aid in the cohesion of the crystal packing. In the previously reported form-1, C—H...Br interactions connect molecules into zigzag chains, which are linked by C—Br...π interactions into layers, whereas the van der Waals interactions between the layers stabilize the crystal packing of form-2. Hirshfeld molecular surface analysis was used to compare the intermolecular interactions of the polymorphs.
Databáze: OpenAIRE