Coupling constant

Coupling constant is like a secret code that tells us how atoms are connected in a molecule. Imagine a chain made up of beads. The beads are the atoms and the chain is the molecule. Now, if you shake the chain, the beads will move and stretch. When they stretch, they make a special vibration called a "wave." This wave is like a message that tells us how the atoms are connected.

The coupling constant is the amount of energy needed to create this wave. It is like a secret code that tells us how strong the connection between the atoms is. The stronger the connection, the higher the coupling constant. For example, if two protons in a molecule are very close together, they will create a stronger wave than if they are far apart.

Scientists use the coupling constant to figure out how molecules are made and how they work. This helps them to understand how chemicals react and how to make new medicines. So, coupling constant is like a secret message that helps scientists solve mysteries about molecules.