Abstract
The proton transfer times for a 2-phenyl-benzotriazole (HOPB) having an octyl group on the 5-position are essentially the same as those found earlier with 5-methyl substituent but the overall rotational reorientation time is significantly increased with the octyl substituent. A systematic study of the proton transfer in 1-alkanols has revealed that the rates for both methyl and octyl derivatives are close to the solvent longitudinal relaxation times, τL. Significant solvation of excited molecules is not occurring during the proton transfer lifetime. It is concluded that the proton transfer is a tunneling process that is slowed down by the multidimensionality of the potential surface and by the solvent fluctuations.
| Original language | English |
|---|---|
| Pages (from-to) | 311-319 |
| Number of pages | 9 |
| Journal | Chemical Physics |
| Volume | 136 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1989 Sep 15 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Kim, Y. R., Yardley, J. T., & Hochstrasser, R. M. (1989). Solvent effects on intramolecular proton transfer. Chemical Physics, 136(2), 311-319. https://doi.org/10.1016/0301-0104(89)80055-2