Dynamics of intramolecular vibrational redistribution in propargylchloride molecule studied by time-resolved Raman spectroscopy

Distal Charge Transport in Peptides

“…This was first shown for chemically reacting systems by Rabinovitch and co-workers to be approximately 1-2 ps [94,95] and is longer still at low excitation energies. [51] Although anharmonically coupled IVR can be as fast as 300 fs, [96] it is still slower than the rotations considered herein. This early and as yet weak coupling to the vibrations of the peptide may be another means for avoiding the large number of degrees of freedom, at least in segments of the peptide chain, that would lead to dissipation of the initial excitation.…”

Intramolecular vibrational redistribution: from high-resolution spectra to real-time dynamics

“…As a whole, the same properties as in Section 4.2.3 were found, but with one important addition. Consider first papers [116,182,183] wherein those molecules were studied that did notreveal IVR incooled beams (see discussion in Section 3.3.1), The results are presented in Fig. 18.…”

“…r eff r vibÀrot . Because the maximum of the rotational distribution for given molecules at room temperature lies at J $ 30±45, it is clear that the majority of initially excited levels (populated states with one vibrational quantum added to the n HC mode) interact with the bath in which r vib 5 r vibÀrot (results from papers [116,182,183] illustrating this fact are presented in the third and fifth columns of Table 6). As a consequence, it is seen from Fig.…”

Intramolecular vibrational redistribution: from high-resolution spectra to real-time dynamics

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