SEARCH Articles Figures Tables Angular Momentum in Molecular Rotation—The Rigid Rotor Angular momentum diatomic rigid rotor Angular momentum rigid rotor Centrifugal distortion the semi-rigid rotor Classical mechanics of rigid rotor Degeneracy for rigid rotor Energy levels for rigid rotor Energy levels/rigid rotor Hamiltonian diatomic rigid rotor Hamiltonian operator for rigid rotor Harmonic oscillator model, with rigid rotor Harmonic oscillator model, with rigid rotor approximation Infrared rigid rotors Non-rigid rotor Normal-mode/rigid-rotor Hamiltonian Normal-mode/rigid-rotor sampling Rigid Rotor Harmonic Oscillator Approximation (RRHO) Rigid Rotor Results Rigid Rotor States and Energy Levels Rigid isotropic rotor Rigid rotor Hamiltonian Rigid rotor approximation Rigid rotor degeneracies Rigid rotor harmonic oscillator ideal gas Rigid rotor harmonic oscillator mode Rigid rotor model Rigid rotor quantum treatment Rigid rotor-harmonic oscillator approach Rigid rotor-harmonic oscillator model Rigid rotors, molecular Rigid triaxial rotor Rigid-rotor and harmonic-oscillator Rigid-rotor harmonic-oscillator Rigid-rotor harmonic-oscillator approximation Rigid-rotor harmonic-oscillator transition states Schrodinger equation rigid-rotor Semi-rigid rotor Symmetric rotor rigid The Ideal Gas, Rigid-Rotor Harmonic-Oscillator Approximation The Rigid Rotor Harmonic Oscillator Approximation The Two-Particle Rigid Rotor The non-rigid rotor The rigid rotor Wave function for rigid rotor Wave function rigid-rotor