2,3-Di-ethyl-benzo[g]quinoxaline.

Area of Science:

• Organic Chemistry
• Crystallography

Background:

• Synthesis of novel organic compounds is crucial for materials science.
• Understanding molecular structure and packing influences material properties.

Purpose of the Study:

• To synthesize and characterize a new compound with the molecular formula C16H16N2.
• To investigate the crystal structure and intermolecular interactions of the synthesized compound.

Main Methods:

• Chemical synthesis involving 3,4-hexanedione, 1,2-diaminonaphthalene, and ammonium bifluoride (NH4HF2) catalyst.
• X-ray crystallography to determine the three-dimensional molecular structure and crystal packing.
• Analysis of bond lengths, bond angles, and deviations from planarity.

Main Results:

• Successful synthesis of the target C16H16N2 compound.
• The fused-ring system is nearly planar, with one methyl group deviating significantly from the plane.
• Molecules exhibit a distinctive criss-cross packing motif in space group I, stabilized by aromatic pi-pi stacking interactions (shortest centroid-centroid separation = 3.5805 Å).

Conclusions:

• The study provides a detailed structural characterization of a novel organic compound.
• The observed molecular packing and pi-pi stacking suggest potential applications in materials science.
• Further research could explore the electronic or optical properties influenced by this specific crystal structure.