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Updated: May 9, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
Published on: April 19, 2019
Benzenoid polycyclic hydrocarbons with an open-shell biradical ground state
Zhe Sun1, Zebing Zeng, Jishan Wu
1Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 (Singapore), Fax: (+ 65) 6779-1691.
This review explores open-shell biradical polycyclic hydrocarbons, including acenes and zethrenes. These nanographene platforms show promise for advanced electronics and spintronics applications.
Area of Science:
- Organic Chemistry
- Materials Science
- Quantum Chemistry
Background:
- Polycyclic hydrocarbons with open-shell biradical ground states are key to understanding nanographene electronic structures.
- These molecules offer unique properties for advanced material applications.
Purpose of the Study:
- To review recent theoretical and experimental progress on four classes of open-shell biradical polycyclic hydrocarbons.
- To highlight their structural significance, electronic properties, and potential applications.
Main Methods:
- Focus review synthesizing theoretical and experimental findings.
- Analysis of acenes, periacenes, anthenes, zethrenes, and extended p-quinodimethane derivatives.
Main Results:
- Detailed examination of structural and physical properties of open-shell biradical systems.
- Identification of promising candidates for next-generation electronic and spintronic devices.
Conclusions:
- Open-shell biradical polycyclic hydrocarbons are crucial for nanographene research.
- These molecules hold significant potential for applications in electronics, spintronics, and non-linear optics.
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