Table 1.
Vibrational lifetimes (T1), orientational relaxation time constants (τr), and Lorentzian contribution to the line width from the two relaxation processes for the four species
| Species (solvent) | T1, ps | τ1, ps | Line width, cm−1 |
|---|---|---|---|
| Free (CCl4) | 12.5 ± 0.5 | 2.9 ± 0.5 | 1.6 |
| Free (mixed) | 12.5 ± 1 | 2.9 ± 0.5* | 1.6 |
| Complex (mes.) | 7.6 ± 0.5 | 5.5 ± 0.5 | 1.3 |
| Complex (mixed) | 7.6 ± 1 | 4.5 ± 0.5* | 1.5 |
*The rotational relaxation time corrected for the changes in viscosity from the pure solvents where they were measured.