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Updated: May 24, 2026

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
Published on: April 1, 2013
1,1'-(Phenyl-methyl-ene)dinaphthalen-2-ol
1College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
This study details the molecular structure of a novel organic compound, C(27)H(20)O(2). It highlights specific bond angles and intramolecular hydrogen bonding, crucial for understanding its chemical properties and crystal packing.
Area of Science:
- Crystallography
- Organic Chemistry
- Molecular Structure Analysis
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is fundamental to predicting their chemical behavior and physical properties.
- Detailed structural analysis provides insights into intermolecular forces and crystal lattice formation.
Purpose of the Study:
- To elucidate the precise molecular geometry of the title compound, C(27)H(20)O(2).
- To investigate the nature and significance of intramolecular and intermolecular interactions within the crystal structure.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the atomic coordinates and bond parameters.
- Analysis of crystallographic data to identify hydrogen bonding and other non-covalent interactions.
Main Results:
- The phenyl ring exhibits distinct orientations relative to the naphthalene systems (57.87° and 85.12°).
- A significant dihedral angle of 70.10° exists between the two naphthalene ring systems.
- Strong intramolecular O-H⋯O hydrogen bonding was observed, along with intermolecular O-H⋯O hydrogen bonds forming inversion dimers in the crystal lattice.
- A weak C-H⋯π interaction was also identified.
Conclusions:
- The determined structure reveals a unique spatial arrangement of the aromatic systems.
- Intramolecular hydrogen bonding plays a key role in stabilizing the molecule's conformation.
- Intermolecular interactions dictate the crystal packing, influencing bulk material properties.
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