Tuesday, December 9, 2025

A single-electron bond discovered in a carbon-based compound

The discovery validates a century-old theory.

A team of researchers from Hokkaido University has isolated a compound in which a single electron is shared between two carbon atoms in a remarkably stable covalent bond, known as a sigma bond. The team used X-ray diffraction analysis to study the crystals and found that the carbon atoms in them were extremely close together, suggesting the presence of single-electron covalent bonds between carbon atoms.

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Discovery of auroras on rogue planet challenges current models

These insights are pushing the boundaries of our understanding of alien atmospheres.

Inside the Milky Way’s largest star-forming cloud, seen by Webb

Sagittarius B2 is so much more active than the rest of the galactic center.

How ice breaks down iron faster than water does

Think water rusts iron? Ice does it even faster

Earth’s mantle hides nickel-rich metals never seen in nature before

Scientists uncover hidden metallic secrets deep within Earth.
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