Carbon–bismuth bonds reveal that relativity blurs the textbook line between sigma and pi bonds

Brown University chemists have provided direct evidence that upends the textbook explanation of how triple chemical bonds ...
Phys.org

A year after undermining Bredt's rule, scientists make cage-shaped, double-bonded molecules that defy expectations

Organic chemistry is packed with rules about structure and reactivity, especially when it comes to making and breaking chemical bonds. The rules governing how these bonds, which hold atoms together in ...
Nature

Chemical Bonding Theory and Electronic Structure Analysis

Chemical bonding theory offers a framework for understanding how atoms associate to form molecules and materials through the sharing, donation or redistribution of electrons. From the early ...
Science Daily

Scientists just overturned a 100-year-old rule of chemistry, and the results are “impossible”

Chemists at UCLA are showing that some of organic chemistry’s most famous “rules” aren’t as unbreakable as once thought. By creating bizarre, cage-shaped molecules with warped double bonds—structures ...
Nature

Valence Bond Theory and Electronic Structure in Chemistry

Valence bond theory offers a description of chemical bonding in which atomic orbitals overlap to form localized electron pairs, blending ionic and covalent contributions to yield resonance energies ...