N-(4-Methyl-phen-yl)formamide.

Area of Science:

• Crystallography
• Organic Chemistry
• Molecular Structure

Background:

• Understanding molecular interactions is crucial in crystal engineering.
• Amide compounds exhibit diverse hydrogen bonding capabilities.
• Benzene ring substituents influence molecular conformation.

Purpose of the Study:

• To elucidate the crystal structure of the title compound, C(8)H(9)NO.
• To analyze the conformational preferences of the amide group relative to the benzene ring.
• To investigate intermolecular interactions governing crystal packing.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Dihedral angles were measured to quantify the orientation of the amide group.
• Intermolecular interactions, including hydrogen bonds, were identified and analyzed.

Main Results:

• The amide group forms a dihedral angle of 32.35(1)° with the benzene ring.
• Strong N-H⋯O hydrogen bonds link molecules into inversion dimers.
• Weak C-H⋯O interactions further organize molecules into chains along the a axis.

Conclusions:

• The crystal structure is stabilized by a combination of strong and weak intermolecular forces.
• The observed dihedral angle reflects specific conformational preferences in the solid state.
• This structural information contributes to the understanding of amide-based crystal engineering.