induced dipole

A dipole-induced-dipole interaction occurs when a polar molecule influences the electron distribution of a nearby nonpolar molecule, creating a temporary dipole. This induced dipole then interacts with the original polar molecule, leading to a weak attractive force between them. This is one type of intermolecular force, which are weaker than chemical bonds and are responsible for phenomena like the liquefaction of gases.12

Even nonpolar molecules can experience attractive forces due to fluctuations in electron density, creating transient dipoles that induce dipoles in neighboring molecules. This is known as a dispersion interaction. These intermolecular forces, collectively referred to as van der Waals forces, are crucial for the existence of liquids and solids composed of molecules. The polarity of a bond arises from differences in electronegativity between atoms, where the more electronegative atom attracts electrons, gaining a partial negative charge, while the less electronegative atom gains a partial positive charge.324