Vibration analysis

Vibrational analysis is based on the finite difference approximation. Different information can be obtained from this:

• Vibrational modes
  • Vibrations
  • Old calculations
• Infrared intensities
  • Infrared
• Resonant and non-resonant Raman spectra
  • 1. Finite difference calculations
• Evaluation of Franck-Condon factors
  • Franck-Condon factors in CH4