A force between molecules, including effects of electrostatics, polarizability and London dispersion forces. Hydrogen bonds describe a directional interaction pattern rather than an additional fundamental force to add independently to all those components.
Interaction involving a quadrupolar charge distribution. benzene has no permanent dipole by symmetry but can still have orientation-dependent electrostatic interactions.
Two benzene molecules associated by dispersion and electrostatic interactions. T-shaped and parallel-displaced geometries are important low-energy arrangements; a single permanent dipole–dipole model is inadequate.
Short-range repulsion associated with the antisymmetry requirement for overlapping electronic states, related to the Pauli exclusion principle. It competes with attractive electrostatic and London dispersion forces at small intermolecular separations.
An existing charge distribution polarizes a neighbouring molecule, changing its electron density and interaction energy. The resulting interaction depends on the molecular polarizability and local electric field.
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Intermolecular forces are the forces of attraction or repulsion that occur between neighboring particles (atoms, molecules, or ions) in a substance. These forces play a crucial role in determining the physical properties of substances, such as boiling and melting points, vapor pressures, and solubility.