2-Amino-4-methyl-pyridinium 2-nitro-benzoate.

Area of Science:

• Crystallography
• Supramolecular Chemistry
• Materials Science

Background:

• Molecular salts are formed by proton transfer between acidic and basic components.
• Understanding crystal packing is crucial for predicting material properties.
• Hydrogen bonding plays a key role in the self-assembly of molecular structures.

Purpose of the Study:

• To characterize the crystal structure of a novel molecular salt.
• To investigate the intermolecular interactions governing crystal packing.
• To elucidate the formation of hydrogen-bonded networks.

Main Methods:

• Single-crystal X-ray diffraction was used to determine the molecular and ionic arrangements.
• Analysis of hydrogen bonding interactions (N-H⋯O and C-H⋯O) was performed.
• Crystal structure was visualized and analyzed to identify network formation.

Main Results:

• The molecular salt consists of protonated 2-amino-4-methyl-pyridine cations and deprotonated nitro-benzoic acid anions.
• The crystal structure exhibits chains formed by N-H⋯O hydrogen bonds propagating along the [001] direction.
• These chains are further interconnected by C-H⋯O hydrogen bonds, leading to the formation of two-dimensional networks parallel to the bc plane.

Conclusions:

• The study successfully determined the crystal structure of the molecular salt.
• The observed hydrogen bonding patterns dictate the formation of extended chain and network architectures.
• This structural insight contributes to the understanding of supramolecular assembly in crystalline materials.