A research group has successfully demonstrated that carbon-carbon (C-C) covalent bonds expand and contract flexibly in response to light and heat. This unexpected flexibility of C-C bonds could confer ...

The latest short science news items from C&EN. Open an introductory chemistry textbook. What is a covalent bond? A covalent bond occurs when atoms share electrons in a molecule. What is a hydrogen ...

A group of researchers at the University of Tokyo have spent years testing the limits of chemical bonds. And now, after years of work, they've finally explored an idea originally proposed in 1931: a ...

One class of drugs that has shown promise in treating diseases ranging from lung cancer to COVID-19 are targeted covalent inhibitors (TCIs). These small molecule drugs form covalent bonds with their ...

New research shows that curium — one of the heaviest known elements — can be manipulated to a larger degree than previously thought. An international team published a study on July 15 in the journal ...

Prior to 2000, many drugs that formed a covalent bond with targets did so non-selectively, which often led to undesired side effects when compared to non-covalent drugs. This led to the belief that ...