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Updated: Jun 1, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
Published on: September 26, 2016
2,3-Bis(methyl-sulfan-yl)-1,4,5,8-tetra-thia-fulvalene
Ning-Juan Zheng1, Bing-Zhu Yin
1Key Laboratory of Organism Functional Factors of the Changbai Mountain, Yanbian University, Ministry of Education, Yanji 133002, People's Republic of China.
The crystal structure of C(8)H(8)S(6) reveals five-membered rings with a dihedral angle of 25.06°. Molecules pack via van der Waals forces in the crystal lattice.
Area of Science:
- Crystallography
- Materials Science
- Organic Chemistry
Background:
- Understanding molecular packing is crucial for predicting material properties.
- Sulfur-rich organic compounds exhibit unique structural and electronic characteristics.
Purpose of the Study:
- To determine the crystal structure of the title compound C(8)H(8)S(6).
- To analyze the molecular conformation and intermolecular interactions within the crystal.
Main Methods:
- Single-crystal X-ray diffraction was employed to elucidate the crystal structure.
- Analysis of bond lengths, bond angles, and dihedral angles provided conformational insights.
Main Results:
- The crystal structure of C(8)H(8)S(6) was successfully determined.
- A dihedral angle of 25.06(9)° was observed between the five-membered rings.
- Intermolecular interactions are dominated by van der Waals forces due to the absence of short contacts.
Conclusions:
- The crystal packing of C(8)H(8)S(6) is governed by weak van der Waals forces.
- The observed dihedral angle provides specific structural information for this sulfur-rich compound.
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