N'-(4-Chloro-benzyl-idene)-2-hydroxy-benzohydrazide
Shu-Ping Zhang1, Rui Qiao, Si-Chang Shao
1Department of Chemistry, Fuyang Normal College, Fuyang Anhui 236041, People's Republic of China.
Summary
This study details the molecular structure of C(14)H(11)ClN(2)O(2), revealing a trans configuration and intramolecular hydrogen bonding. Intermolecular hydrogen bonds further organize these molecules into crystal chains.
Area of Science:
- Organic chemistry
- Crystallography
- Molecular structure analysis
Background:
- Understanding molecular conformation is crucial in organic chemistry.
- Hydrogen bonding significantly influences molecular packing and crystal structures.
- The specific compound C(14)H(11)ClN(2)O(2) presents an interesting case for structural investigation.
Purpose of the Study:
- To elucidate the detailed molecular and crystal structure of C(14)H(11)ClN(2)O(2).
- To investigate the role of intramolecular and intermolecular hydrogen bonding in the compound's conformation and assembly.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
- Analysis of bond lengths, bond angles, and dihedral angles provided insights into molecular geometry.
- Hydrogen bond analysis identified both intramolecular and intermolecular interactions.
Main Results:
- The molecule C(14)H(11)ClN(2)O(2) was confirmed to adopt a trans configuration around the C=N double bond.
- An intramolecular N-H⋯O hydrogen bond was observed, contributing to the molecule's specific conformation.
- The two benzene rings within the molecule exhibit a dihedral angle of 17.9(8)°.
- Intermolecular O-H⋯O hydrogen bonds were identified, leading to the formation of molecular chains along the [10] direction in the crystal lattice.
Conclusions:
- The crystal structure of C(14)H(11)ClN(2)O(2) is characterized by a trans C=N double bond and significant hydrogen bonding.
- Intramolecular hydrogen bonding plays a key role in defining the molecular conformation.
- Intermolecular hydrogen bonding dictates the supramolecular assembly, forming extended chains in the solid state.
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