SEARCH Articles Figures Tables Intramolecular vibrational energy overtone excitation Overton Overtone Overtone vibration Overtone vibration Transitions, vibrational overtones Vibrational overtone absorption Vibrational overtone absorption excitation Vibrational overtone excitation Vibrational overtone spectra Vibrational overtone spectra interpretation Vibrational overtone spectra references Vibrational overtones and combination