5,6-Dihydro-2H-1,3-dithiolo[4,5-b][1,4]dioxine-2-thione

Area of Science:

• Crystallography and Molecular Structure
• Organic Chemistry
• Sulfur Chemistry

Background:

• Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties and reactivity.
• The 1,3-dithiole-2-thione scaffold is a key structural motif in various functional materials and biologically active compounds.
• Conformational analysis of cyclic systems provides insights into their stability and interactions.

Purpose of the Study:

• To elucidate the precise molecular structure and conformation of the title compound, C(5)H(4)O(2)S(3).
• To characterize the stereochemistry and planarity of the 1,3-dithiole-2-thione unit and the dioxine ring.

Main Methods:

• Single-crystal X-ray diffraction analysis was employed to determine the atomic coordinates and bond parameters.
• Geometric calculations were performed to assess the planarity of the core unit and the conformation of the dioxine ring.

Main Results:

• The molecule C(5)H(4)O(2)S(3) exhibits a planar 1,3-dithiole-2-thione core with a mean atomic deviation of 0.020(1) Å.
• An ethylenedioxy group is attached at the 4,5-positions of the dithiole ring.
• The dioxine ring adopts a distinct twist-chair conformation.

Conclusions:

• The structural characterization confirms the presence of a planar 1,3-dithiole-2-thione moiety, a common feature in electron-rich systems.
• The observed twist-chair conformation of the dioxine ring influences the overall molecular shape and potential intermolecular interactions.
• This detailed structural information serves as a foundation for further studies on the chemical and physical properties of this class of compounds.