N-(2,6-Diisopropyl-phen-yl)thio-amide

Area of Science:

• Crystallography
• Organic Chemistry
• Supramolecular Chemistry

Background:

• Understanding molecular assembly is crucial in crystal engineering.
• Carbothioamide derivatives exhibit diverse structural motifs and intermolecular interactions.
• The specific arrangement of functional groups influences crystal packing and properties.

Purpose of the Study:

• To elucidate the crystal structure of N-[2,6-bis-(propan-2-yl)phenyl]carbothioamide.
• To investigate the intermolecular interactions and packing motifs in the solid state.
• To analyze the conformational preferences of the carbothioamide moiety.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
• Analysis of hydrogen bonding networks (N-H⋯S=C) was performed.
• Geometric parameters, including dihedral angles, were measured and analyzed.

Main Results:

• The crystal structure reveals molecules forming helical chains along the b axis via N-H⋯S=C hydrogen bonds.
• The thioamide group exhibits a syn disposition of its hydrogen atoms.
• A significant dihedral angle of 77.60(14)° was observed between the thioamide moiety and the benzene ring, indicating a twisted conformation.

Conclusions:

• The crystal packing is dominated by N-H⋯S=C hydrogen bonds, leading to a helical supramolecular architecture.
• The steric bulk of the isopropyl groups influences the conformation of the thioamide moiety.
• The study provides insights into the structure-property relationships of substituted carbothioamides.