N'-(5-Chloro-2-hydroxy-benzyl-idene)nicotinohydrazide

Area of Science:

• Crystallography
• Organic Chemistry
• Supramolecular Chemistry

Background:

• Schiff bases are versatile organic compounds with diverse applications.
• Understanding the solid-state structure of Schiff bases is key to predicting their properties and reactivity.
• The title compound, C(13)H(10)ClN(3)O(2), represents a new molecular entity for structural investigation.

Purpose of the Study:

• To elucidate the crystal structure of the Schiff base compound C(13)H(10)ClN(3)O(2).
• To analyze the molecular conformation, including dihedral angles between aromatic rings.
• To identify and characterize intra- and intermolecular interactions, such as hydrogen bonds.

Main Methods:

• Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
• Analysis of bond lengths, bond angles, and dihedral angles provided conformational details.
• Intermolecular interactions were studied using hydrogen bond analysis and topological methods.

Main Results:

• The asymmetric unit contains two independent Schiff base molecules.
• Dihedral angles between benzene and pyridine rings range from 1.9(2)° to 12.8(2)°.
• Intramolecular O-H⋯N hydrogen bonds and intermolecular N-H⋯O and N-H⋯N interactions forming R(4)(4)(26) motifs were identified.

Conclusions:

• The crystal structure of C(13)H(10)ClN(3)O(2) has been successfully determined.
• The study highlights the conformational flexibility and specific intermolecular assembly of the Schiff base.
• These findings contribute to the understanding of Schiff base crystal engineering and supramolecular chemistry.