Related Experiment Video
Updated: Mar 25, 2026

Author Spotlight: Advancing Antimicrobial Resistance Research with Innovative Approaches and Synthetic Compounds
Published on: September 27, 2024
Crystal structure of 1,3-bis-(2,3-di-methyl-quinoxalin-6-yl)benzene
Charles E Diesendruck1, Gabrielle Rubin1, Jeffery A Bertke2
1Department of Chemistry, University of Illinois, Urbana, Illinois 61801, USA.
Abstract:
The title compound, C26H22N4 (I), was synthesized by C-H iridium-catalyzed borylation followed by Suzuki coupling. The mol-ecular structure of (I) consists of a central benzene ring with 3-di-methyl-quinoxalin-6-yl groups at the 1 and 3 positions. These 2,3-di-methyl-quinoxalin-6-yl groups twist significantly out of the plane of the benzene ring. There are inter-molecular π-π inter-actions which result in a two-dimensional extended structure. The layers extend parallel to the ab plane and stack along the c axis.
Related Concept Videos
Structure of Benzene: Molecular Orbital Model
Structure of Benzene: Kekulé Model
He proposed that benzene has a cyclic structure of six carbon atoms attached to one hydrogen atom each, with three alternating pi bonds.
Benzene to 1,4-Cyclohexadiene: Birch Reduction Mechanism
NMR Spectroscopy of Benzene Derivatives
Nomenclature of Aromatic Compounds with Multiple Substituents
For disubstituted benzene derivatives, with two groups attached to the benzene ring, three constitutional isomers are possible. For example, consider dimethyl benzene, often called xylene, where the second methyl group can be substituted at the second, third, or fourth carbon. The relative position of the substituents is represented by prefixes ortho, meta, or...
Chair Conformation of Cyclohexane
The hydrogen atoms linked to carbons are arranged in two different axial and equatorial orientations to achieve this...

