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2,5-Diamino-thio-phene-3,4-dicarbonitrile
Acta Crystallographica. Section E, Structure Reports Online
|September 13, 2012
Summary
The crystal structure of C(6)H(4)N(4)S reveals a planar molecule. This compound forms dimers via hydrogen bonds, extending into a complex three-dimensional network in the solid state.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Chemical Physics
Background:
- Understanding molecular interactions is crucial for materials science.
- Hydrogen bonding plays a key role in crystal engineering.
- The study of organic compounds with nitrogen and sulfur offers diverse structural possibilities.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(6)H(4)N(4)S.
- To investigate the intermolecular interactions governing the solid-state arrangement.
- To characterize the hydrogen bonding network within the crystal.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of hydrogen bonding patterns using graph set notation.
- Visualization of the three-dimensional network formed by intermolecular interactions.
Main Results:
- The molecule C(6)H(4)N(4)S is planar and lies on a crystallographic mirror plane.
- Centrosymmetric dimers are formed through cyclic amino N-H⋯N hydrogen bonds.
- These dimers assemble into a 3D network via amine-cyano N-H⋯N associations.
Conclusions:
- The crystal packing is dominated by robust hydrogen bonding interactions.
- The observed network structure provides insights into the self-assembly of organic molecules.
- This study contributes to the understanding of structure-property relationships in related heterocyclic compounds.
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