Piperidinium 3-hydr-oxy-2-naphthoate.

Area of Science:

• Crystallography
• Supramolecular Chemistry
• Organic Chemistry

Background:

• 3-hydroxy-2-naphthoic acid is an organic compound with potential applications in material science.
• Piperidine is a cyclic secondary amine commonly used in organic synthesis.
• Understanding the crystal structure of organic salts can provide insights into their physical and chemical properties.

Purpose of the Study:

• To synthesize and characterize the salt formed between 3-hydroxy-2-naphthoic acid and piperidine.
• To elucidate the crystal structure of the title salt.
• To investigate the intermolecular interactions within the crystal lattice.

Main Methods:

• Crystallization from a methanol/water solution.
• Single-crystal X-ray diffraction analysis.

Main Results:

• The title salt, C(5)H(12)N(+)·C(11)H(7)O(3) (-), was successfully obtained.
• Piperidinium cations adopt a chair conformation in the crystal structure.
• Hydrogen bonding interactions (N-H⋯O and C-H⋯O) were observed between cations and anions.
• An intramolecular O-H⋯O interaction was identified within the hydroxy-naphthoate anion.

Conclusions:

• The crystal structure reveals the specific arrangement and interactions of piperidinium cations and hydroxy-naphthoate anions.
• Hydrogen bonding plays a crucial role in stabilizing the crystal lattice.
• The findings contribute to the understanding of supramolecular assembly in organic salts.