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A Breakthrough in Carbon Bonding: First Observation of Single-Electron Covalent Bonds

Saif Ullah
3 min readOct 2, 2024

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Researchers have made a significant discovery by seeing a single-electron covalent connection between two carbon atoms. This discovery challenges the traditional understanding of chemical reactions that has been accepted for more than a century. Linus Pauling suggested the existence of this particular sort of bond for the first time in 1931. Although it had been predicted, it had never been actually seen in carbon, which is a crucial ingredient in organic chemistry and many industrial chemicals.

This is the process of discovery

This difficult link was successfully stabilized by the research team lead by Takuya Shimajiri from the University of Tokyo. They did this by developing a unique molecule that had a protective shell of fused carbon rings, which kept the carbon-carbon bond at its heart. Through the process of extending the link and inducing oxidation, they were able to establish a stable C–C bond with a single electron. This bond was then crystallized and examined using sophisticated methods. The durability of the new bond under ambient circumstances was shown by the reaction that resulted from…

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