Preparative-scale synthesis of nonacene.
Andrej Jančařík1,2,3, Jan Holec4, Yuuya Nagata5
1GNS Group, CEMES-CNRS, 29 Rue J. Marvig, 31055, Toulouse, France. andrej.jancarik@u-bordeaux.fr.
Nature Communications
|January 12, 2022
Summary
Researchers synthesized nonacene, a large polycyclic aromatic hydrocarbon, overcoming challenges in producing these molecules in bulk. This breakthrough offers a stable form of nonacene, paving the way for further research and applications.
Area of Science:
- Organic Chemistry
- Materials Science
- Nanotechnology
Background:
- Significant advancements in synthesizing polycyclic aromatic hydrocarbons (PAHs) like acenes have been achieved using on-surface methods and low-temperature solid matrices.
- Current methods yield only minute quantities of acenes, hindering large-scale production and broader applications.
- Despite decades of effort, the bulk synthesis of higher acene homologues, such as heptacene, remains a significant hurdle.
Purpose of the Study:
- To report the successful preparation and characterization of nonacene.
- To demonstrate the thermal and temporal stability of the synthesized nonacene.
- To address the challenge of large-scale synthesis for higher acene homologues.
Main Methods:
- On-surface synthesis techniques in ultra-high vacuum environments.
- Generation of acenes within solid matrices at low temperatures.
- Characterization of nonacene through advanced analytical methods.
Main Results:
- Successful synthesis and characterization of nonacene.
- Demonstration of excellent thermal stability of nonacene.
- Confirmation of in-time stability for nonacene.
Conclusions:
- The developed method enables the preparation of nonacene, a significant advancement in PAH synthesis.
- Nonacene exhibits remarkable stability, suggesting potential for practical applications.
- This work overcomes previous limitations in producing higher acene homologues in substantial quantities.
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