Pair potentials#

The Lennard-Jones 12-6 potential, Morse vs. harmonic bond potentials and the classical vibration of a two-body diatomic oscillator, the Buckingham exp-6 potential, and a small bonded molecule vibrating under coupled harmonic bond-stretch and angle-bend terms.

Morse vs. harmonic bond potentials, and diatomic bond vibration

Morse vs. harmonic bond potentials, and diatomic bond vibration

A bent triatomic molecule: coupled bond-stretch and angle-bend vibrations

A bent triatomic molecule: coupled bond-stretch and angle-bend vibrations

Buckingham vs. Lennard-Jones: exponential repulsion and its inner turnover

Buckingham vs. Lennard-Jones: exponential repulsion and its inner turnover

The Lennard-Jones 12-6 potential: repulsion, dispersion, and the minimum

The Lennard-Jones 12-6 potential: repulsion, dispersion, and the minimum