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2,6-Dichloro-pyridine-3,5-dicarbonitrile.
Planar molecules of C(7)HCl(2)N(3) form chains via C-H⋯N interactions in the crystal structure. These chains further assemble into layers through C-Cl⋯N interactions, revealing crystal packing details.
Area of Science:
- Crystallography
- Solid-state chemistry
- Molecular structure
Background:
- Understanding crystal packing is crucial for predicting material properties.
- Intermolecular interactions dictate the assembly of molecules in the solid state.
Purpose of the Study:
- To elucidate the crystal structure and intermolecular interactions of the title compound, C(7)HCl(2)N(3).
- To analyze the packing motifs and hydrogen bonding networks within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of intermolecular interactions, including hydrogen bonds and halogen bonds, was performed.
Main Results:
- The title compound crystallizes with essentially planar molecules.
- Molecules form chains along the b axis mediated by C-H⋯N interactions.
- These chains are interconnected into layers parallel to the ab plane via C-Cl⋯N interactions.
Conclusions:
- The crystal structure is characterized by a layered arrangement driven by specific intermolecular forces.
- The identified C-H⋯N and C-Cl⋯N interactions are key to the observed crystal packing.
- This structural information provides insights into the solid-state behavior of C(7)HCl(2)N(3).

