Chrysaorenes: assembling coronoid hydrocarbons via the fold-in synthesis
Marcin A Majewski1, Tadeusz Lis, Joanna Cybińska
1Wydział Chemii, Uniwersytet Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland. marcin.stepien@chem.uni.wroc.pl.
Chemical Communications (Cambridge, England)
|September 9, 2015
Summary
Two novel coronoid hydrocarbons, [3]- and [4]chrysaorene, were synthesized. These molecules exhibit geometry-dependent magnetic properties and strong fluorescence, offering potential in materials science.
Area of Science:
- Organic Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Coronoid hydrocarbons are polycyclic aromatic hydrocarbons with unique structures.
- Fullerene fragments offer intriguing electronic and photophysical properties.
- Synthesis of complex polycyclic aromatic hydrocarbons remains a challenge.
Purpose of the Study:
- To synthesize two novel coronoid hydrocarbons, [3]- and [4]chrysaorene.
- To investigate the structural and property relationships of these molecules.
- To explore their potential applications based on magnetic and fluorescent characteristics.
Main Methods:
- Synthesis of [3]- and [4]chrysaorene from fluorenophane precursors.
- Utilized the 'fold-in' strategy for molecular construction.
- Characterization of synthesized compounds using spectroscopic and analytical techniques.
Main Results:
- Successful synthesis of [3]- and [4]chrysaorene.
- [3]Chrysaorene adopted a bowl-shaped geometry, resembling a fullerene fragment.
- [4]Chrysaorene exhibited a planar structure with a large 24-membered internal ring.
- Both compounds displayed geometry-dependent magnetic properties.
- Strong fluorescence was observed for both synthesized coronoids.
Conclusions:
- The fold-in strategy is effective for synthesizing complex coronoid hydrocarbons.
- Molecular geometry significantly influences the magnetic properties of chrysaorenes.
- The strong fluorescence suggests potential applications in organic electronics and sensing.
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