(a) The harmonic oscillator can be used as a model for the vibrational motion of a diatomic molecule. Describe the vibrational spectrum that is predicted by the harmonic oscillator model. In what region of the electromagnetic spectrum will the spectrum appear? What molecular property can be obtained from the vibrational spectrum of a diatomic molecule?
(b) The rigid rotor can be used as a model for the rotational motion of a diatomic molecule. Describe the rotational spectrum that is predicted by the rigid rotor model. In what region of the electromagnetic spectrum does the spectrum appear? What molecular property can be obtained from the rotational spectrum of a diatomic molecule?