2-[(4-Chloro-phen-yl)sulfan-yl]-2-meth-oxy-1-phenyl-ethan-1-one: crystal structure and Hirshfeld surface analysis

Area of Science:

• Crystallography
• Organic Chemistry
• Supramolecular Chemistry

Background:

• The synthesis and structural characterization of novel organic compounds are crucial for understanding molecular interactions and developing new materials.
• Chiral centers and specific functional groups can dictate unique packing arrangements and properties in the solid state.

Purpose of the Study:

• To elucidate the crystal structure and intermolecular interactions of a title compound containing (4-chloro-phenyl)sulfanyl, benzaldehyde, and methoxy residues.
• To investigate the role of specific bond conformations and weak interactions in the supramolecular assembly of the title compound.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the three-dimensional molecular structure.
• Analysis of bond angles, torsion angles, and dihedral angles provided insights into molecular conformation.
• Hirshfeld surface analysis was utilized to quantify the contributions of various intermolecular interactions to crystal packing.

Main Results:

• The crystal structure revealed a racemic mixture with a chiral methine-carbon atom linking the functional groups.
• A significant twist in the methine-C-C(carbonyl) bond resulted in a dihedral angle between the benzaldehyde and methine+methoxy residues.
• Helical supramolecular chains were observed along the c-axis, stabilized by C-H⋯O interactions.
• Hirshfeld surface analysis indicated that H⋯H and C⋯C contacts play a significant role in the overall molecular packing.

Conclusions:

• The title compound exhibits a unique crystal structure driven by specific conformational preferences and intermolecular interactions.
• The formation of helical chains highlights the potential for designing ordered supramolecular architectures.
• Understanding these packing motifs provides a foundation for predicting and controlling the solid-state properties of related organic molecules.