Computing Franck-Condon Factors
Description: Students will calculate vibrational progressions (Franck-Condon factors) in spectra of polyatomic molecules. This assignment builds on the students’ previous experience computing optimized molecular structures, vibrational frequencies, and excited or ionized states.
Suggested level: Graduate or advanced undergraduate
Learning objectives: Understand how the vibrational states of a molecule influence the energetics and the probabilities of radiative transitions; understand vibrational profiles of electronic spectra.
![Influence of vibrational modes and thermal population in the electronic excitation spectrum of a molecule.](/sites/default/files/inline-images/Screen%20Shot%202022-08-15%20at%202.21.44%20PM.png)