For more than a decade in the middle of the 20th century, chemists debated exactly what "carbocations"—molecules with a positively charged carbon atom—looked like. What is known as the "classical view ...

Chemists have explained the structure of a non-classical carbocation. They have captured the 2-norbornyl cation as a crystal and determining beyond doubt the structure of this unusual and instable ...

Researchers report they have discovered a chemical reaction that might someday be used to process petroleum into useful compounds. For more than a decade in the middle of the 20th century, chemists ...