In a groundbreaking discovery, researchers from Japan’s Hokkaido University have identified a single electron covalent bond between two carbon atoms for the first time. This finding is seen as a miracle by some experts in the field. Two carbon atoms typically form bonds by sharing two electrons.
Single electron covalent bonds are highly reactive and less stable due to their low bond strength. These factors make it very challenging to isolate atoms bonded via a single electron. The study authors performed an oxidation reaction of a derivative of hexaphenylethane using iodine.
Hokkaido’s carbon bonding miracle
This derivative contained a very elongated paired-electron covalent bond between two carbon atoms. The reaction resulted in the formation of violet-colored crystals.
X-ray diffraction analysis of the crystals revealed that the two elongated carbon atoms had come closer due to the formation of a single-electron covalent bond between them. Raman spectroscopy further confirmed the presence of the single electron C-C bond. Takuya Shimajiri, first author of the study and an assistant professor at Tokyo University, explained, “These results thus constitute the first piece of experimental evidence for a carbon-carbon single-electron covalent bond, which can be expected to pave the way for further developments of the chemistry of this scarcely-explored type of bonding.”
Carbon is the backbone for life and most things that support life on Earth.
Nearly everything we see and use is made of carbon, from the cells in our bodies to the cars we drive and the food we eat. Yusuke Ishigaki, one of the study authors and a professor at Hokkaido University, emphasized the importance of this finding, stating, “Elucidating the nature of single-electron sigma-bonds between two carbon atoms is essential to gain a deeper understanding of chemical-bonding theories and would provide further insights into chemical reactions.”
While the study authors are unsure about the practical applications of their research, they suggest that “it will be in the textbooks.” The study is published in the journal The Blueprint Daily.
Cameron is a highly regarded contributor in the rapidly evolving fields of artificial intelligence (AI) and machine learning. His articles delve into the theoretical underpinnings of AI, the practical applications of machine learning across industries, ethical considerations of autonomous systems, and the societal impacts of these disruptive technologies.
