SEARCH Articles Figures Tables A pseudo-Jahn-Teller system modeled through generalized spin Hamiltonian the C4H4 molecule Bent triatomic molecules Hamiltonian Crude Born-Oppenheimer approximation hydrogen molecule, Hamiltonian Effective Hamiltonian diatomic molecule rotational excitation Hamiltonian diatomic molecule Hamiltonian equations diatomic molecules Hamiltonian for triatomic molecules Hamiltonian hydrogen molecule Hamiltonian operator for a molecule Hamiltonian operators, algebraic models molecules Hamiltonian polyatomic molecule Hamiltonians polyatomic molecules Harmonic oscillator hydrogen molecule, Hamiltonian Heavy-atom molecules Hamiltonians Hydrogen molecule Hamiltonian equation Schrodinger equation hydrogen molecule, Hamiltonian Tetraatomic molecules, Hamiltonian Tetraatomic molecules, Hamiltonian equations Triatomic molecule, vibration-rotation Hamiltonians Triatomic molecules Hamiltonian equations Triatomic molecules effective Hamiltonians