Supplement Number 1

Section S1. Delay region suitable for analysis of vibrational dynamics 2 Section S2. Dependence on the room humidity and temperature of the laser room 3 Section S3. Stationary absorption spectra 5 Section S4. Phase analysis of the coherent vibration of acetonitrile 6 Section S5. Transient absorption of acetonitrile with DPS pulses 7 Section S6. Spectrogram analysis of deuterated acetonitrile 8 Section S7. Estimation of lifetime of molecular vibrational coherence 9 Section S8. Spectrogram analysis of non-deuterated benzene 13 Section S9. Spectrogram analysis of deuterated benzene 14