Title of article :
Synthesis, crystal structures and Hirshfeld surface analysis of 1,4-dibenzyl-6-methyl-1,4-dihydroquinoxaline-2,3-dione
Author/Authors :
Cinar, Emine Berrin Department of Physics - Faculty of Arts and Sciences - Ondokuz Mayıs University, Turkey , Zouitini, Ayman Laboratoire de Chimie Organique Appliquée - Université Sidi Mohamed Ben Abdallah - Faculté des Sciences et Techniques, Morocco , Rodib, Youssef Kandri Laboratoire de Chimie Organique Appliquée - Université Sidi Mohamed Ben Abdallah - Faculté des Sciences et Techniques, Morocco , Ouzidan, Younes Laboratoire de Chimie Physique et Chimie Bio-organique - Faculté des Sciences et Techniques Mohammedia - Université Hassan II, Morocco , Marrot, Jérôme Institut Lavoisier de Versailles - UVSQ, CNRS - Université Paris-Saclay, France , Prim, Damien Institut Lavoisier de Versailles - UVSQ, CNRS - Université Paris-Saclay, France , Dege, Necmi Department of Physics - Faculty of Arts and Sciences - Ondokuz Mayıs University, Turkey , Saif, Eiad Department of Computer and Electronic Engineering Technology - Sana'a Community College, Sana'a, Yemen
Abstract :
The title quinoxaline molecule, C23H20N2O2, is not planar, the dihedral angle angle between the mean planes of the benzene rings being 72.54 (15). In the crystal, molecules are connected into chains extending parallel to (101) by weak C—HO hydrogen bonds. Weak C—H interactions link the chains, forming a three-dimensional network structure. Hirshfeld surface analysis revealed that the most important contributions for the crystal packing are from HH (48.7%), HC/CH (32.0%), HO/OH (15.4%), CC (1.9%), HN/NH (1.1%) contacts.
Keywords :
crystal structure , Hirshfeld surfaces , hydrogen bonding , quinoxaline
