Related Experiment Videos
Octafluoronaphthalene-diphenylacetylene (1/1).
J C Collings1, A S Batsanov, J A Howard
1Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, England.
Summary
The title complex, C10F8*C14H10, features alternating stacks of diphenylacetylene and octafluoronaphthalene molecules. This arrangement differs from the herring-bone packing found in the pure components.
Area of Science:
- Crystal engineering
- Supramolecular chemistry
- Materials science
Background:
- Understanding molecular packing is crucial for designing new materials.
- Diphenylacetylene and octafluoronaphthalene are common organic building blocks.
- Co-crystal formation offers a route to novel solid-state structures.
Purpose of the Study:
- To elucidate the crystal structure of the C10F8*C14H10 complex.
- To investigate the molecular arrangement and interactions within the co-crystal.
- To compare the packing in the co-crystal with that of the pure components.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the structure.
- Analysis of intermolecular distances and angles.
- Comparison with crystallographic data of pure diphenylacetylene and octafluoronaphthalene.
Main Results:
- The C10F8*C14H10 co-crystal exhibits mixed stacks of alternating molecules.
- Both diphenylacetylene and octafluoronaphthalene molecules lie on inversion centers.
- The molecules within the stacks are nearly parallel, with a deviation of 8.6(1) degrees.
- This contrasts with the herring-bone packing observed in the pure crystalline forms.
Conclusions:
- The co-crystallization of diphenylacetylene and octafluoronaphthalene leads to a unique mixed-stack structure.
- This study demonstrates the potential for controlling molecular packing through co-crystal formation.
- The findings contribute to the understanding of structure-property relationships in organic materials.