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5-(2-pyridyl)-1,3-dithiane-2-thione
A Hazell1, C J McKenzie, J Nielsen
1Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Arhus C, Denmark. ach@chem.au.dk
Summary
This study details the crystal structure of a novel compound, C9H9NS3. The dithiane-2-thione rings exhibit a half-boat conformation, with the pyridine ring significantly twisted.
Area of Science:
- Organic Chemistry
- Crystallography
- Molecular Structure
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties and reactivity.
- Dithiane-2-thione derivatives are of interest due to their potential applications in various chemical fields.
Purpose of the Study:
- To elucidate the precise molecular structure and conformation of the title compound, C9H9NS3, through crystallographic analysis.
- To investigate the spatial relationship between the dithiane-2-thione ring and the pyridine substituent.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of bond lengths, bond angles, and torsion angles to describe the molecular geometry.
Main Results:
- The compound C9H9NS3 crystallizes with two molecules in the asymmetric unit.
- Both molecules display a symmetric half-boat conformation for the dithiane-2-thione ring.
- The pyridine ring is positioned equatorially and significantly twisted (82.7-84.5 degrees) relative to the dithiane ring.
Conclusions:
- The determined crystal structure provides definitive insights into the conformational preferences of this specific C9H9NS3 derivative.
- The observed twist of the pyridine ring suggests potential steric or electronic factors influencing molecular packing and conformation.