CHEM 214 Lecture Notes - Lecture 29: Azimuthal Quantum Number, Principal Quantum Number, Infrared Spectroscopy
26 Jun 2016
School
Department
Course
Professor
Document Summary
Specific vibrational energy ad rotational motion a nucleus can undergo. Both parameters that are related to how strong the bond is: The depth of the well. (strong bond releases high amount of energy (large well depth) and smaller re) Model allowed to use: ho for vibration and rigid rotor for rotation. Rigid rotor: not evenly spaced, and each energy levels has different degeneracy level (increases as increase quantum number) Diatomic molecule has rotational motion and will be undergoing some sort of vibration around centre of mass. Molecules can take up energy by changing vibration (nuclei vibrating more around centre of mass). It has to be related to a transition between energy levels. Rotational transition occurs by providing some amount of energy, if give energy that does not correspond to energy state, it will not take up energy. Bond length and strength can get it from theory.
