6,7-Dimeth-oxy-2,4-di-phenyl-quinoline

Area of Science:

• Crystallography
• Organic Chemistry
• Molecular Structure

Background:

• Understanding molecular conformation is crucial in organic chemistry.
• Crystal packing influences material properties.
• Quinoline derivatives exhibit diverse biological activities.

Purpose of the Study:

• To elucidate the crystal structure of the title compound, C23H19NO2.
• To analyze the conformational differences between molecules in the asymmetric unit.
• To investigate the intermolecular interactions governing the 3D crystal architecture.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of dihedral angles between phenyl rings provided conformational insights.
• Identification of hydrogen bonds and π-π stacking interactions revealed packing motifs.

Main Results:

• The asymmetric unit contains two conformationally similar molecules (A and B).
• Significant dihedral angles of 76.25(8)° (A) and 70.39(9)° (B) were observed between phenyl rings.
• The crystal structure is a 3D architecture formed by C-H⋯O hydrogen bonds, π-π stacking, and C-H⋯π interactions.

Conclusions:

• The study provides a detailed structural characterization of C23H19NO2.
• Conformational variations within the crystal lattice were quantified.
• Intermolecular interactions dictate the formation of a stable three-dimensional network.