Chemists at UCLA are showing that some of organic chemistry’s most famous “rules” aren’t as unbreakable as once thought. By ...

Chemistry students are taught that some molecular shapes are so strained they simply cannot exist. For about 100 years, one ...

Chemistry students the world over are familiar with covalent bonds and hydrogen bonds. Now a study has revealed a strange variety of bond that acts like a hybrid of the two. Its properties raise ...

Researchers synthesized weird molecules that exist in three dimensions, breaking Bredt's rule and helping to develop future pharmaceuticals.

Organic chemistry is packed with rules about structure and reactivity, especially when it comes to making and breaking ...

Florida State University researchers have discovered a pathway within a certain type of molecule that limits chemical ...

Electronegativity, an essential characteristic of all elements in the periodic table, measures an atom's ability to attract electrons towards itself within a chemical bond. This vital theoretical ...

Scientists have for the first time captured and filmed atoms bonding together, using advanced microscopy methods they captured a moment that is around half a million times smaller than the width of a ...

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 ...