Solvent effects on intramolecular proton transfer

Yong Rok Kim, J. T. Yardley, R. M. Hochstrasser

Research output: Contribution to journalArticle

27 Citations (Scopus)

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, τ L . 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 languageEnglish
Pages (from-to)311-319
Number of pages9
JournalChemical Physics
Volume136
Issue number2
DOIs
Publication statusPublished - 1989 Sep 15

Fingerprint

Proton transfer
protons
Solvation
Relaxation time
retraining
solvation
relaxation time
Derivatives
life (durability)
Molecules
molecules

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Kim, Yong Rok ; Yardley, J. T. ; Hochstrasser, R. M. / Solvent effects on intramolecular proton transfer. In: Chemical Physics. 1989 ; Vol. 136, No. 2. pp. 311-319.
@article{276f2a7119294bf29f6555787feb6623,
title = "Solvent effects on intramolecular proton transfer",
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, τ L . 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.",
author = "Kim, {Yong Rok} and Yardley, {J. T.} and Hochstrasser, {R. M.}",
year = "1989",
month = "9",
day = "15",
doi = "10.1016/0301-0104(89)80055-2",
language = "English",
volume = "136",
pages = "311--319",
journal = "Chemical Physics",
issn = "0301-0104",
publisher = "Elsevier",
number = "2",

}

Solvent effects on intramolecular proton transfer. / Kim, Yong Rok; Yardley, J. T.; Hochstrasser, R. M.

In: Chemical Physics, Vol. 136, No. 2, 15.09.1989, p. 311-319.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Solvent effects on intramolecular proton transfer

AU - Kim, Yong Rok

AU - Yardley, J. T.

AU - Hochstrasser, R. M.

PY - 1989/9/15

Y1 - 1989/9/15

N2 - 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, τ L . 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.

AB - 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, τ L . 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.

UR - http://www.scopus.com/inward/record.url?scp=0001000397&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001000397&partnerID=8YFLogxK

U2 - 10.1016/0301-0104(89)80055-2

DO - 10.1016/0301-0104(89)80055-2

M3 - Article

AN - SCOPUS:0001000397

VL - 136

SP - 311

EP - 319

JO - Chemical Physics

JF - Chemical Physics

SN - 0301-0104

IS - 2

ER -