Femtosecond fluorescence upconversion studies of excited-state proton-transfer dynamics in 2-(2′-hydroxyphenyl)benzoxazole (HBO) in liquid solution and DNA

H. Wang, H. Zhang, O. K. Abou-Zied, C. Yu, F. E. Romesberg, M. Glasbeek

Research output: Contribution to journalArticle

115 Citations (Scopus)

Abstract

A femtosecond fluorescence upconversion study is reported for HBO in solution, as well as for HBO incorporated in DNA. The typical time for the excited-state intramolecular proton-transfer reaction of the syn-enol tautomer in solution and in DNA has been determined to be 150 fs. In addition, the lifetimes of the keto, the anti-enol and the 'solvated enol' tautomer forms were determined in protic solvents, aprotic solvents and DNA. Picosecond rise and decay components in the fluorescence transients with characteristic times between 3 and 25 ps are also observed and attributed to the effects of vibrational cooling.

Original languageEnglish
Pages (from-to)599-608
Number of pages10
JournalChemical Physics Letters
Volume367
Issue number5-6
DOIs
Publication statusPublished - Jan 10 2003

Fingerprint

Benzoxazoles
Proton transfer
Excited states
deoxyribonucleic acid
Fluorescence
tautomers
fluorescence
protons
DNA
Liquids
liquids
excitation
Cooling
cooling
life (durability)
decay

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Femtosecond fluorescence upconversion studies of excited-state proton-transfer dynamics in 2-(2′-hydroxyphenyl)benzoxazole (HBO) in liquid solution and DNA. / Wang, H.; Zhang, H.; Abou-Zied, O. K.; Yu, C.; Romesberg, F. E.; Glasbeek, M.

In: Chemical Physics Letters, Vol. 367, No. 5-6, 10.01.2003, p. 599-608.

Research output: Contribution to journalArticle

@article{ee02e483621d4c73a6621a9e4db3256a,
title = "Femtosecond fluorescence upconversion studies of excited-state proton-transfer dynamics in 2-(2′-hydroxyphenyl)benzoxazole (HBO) in liquid solution and DNA",
abstract = "A femtosecond fluorescence upconversion study is reported for HBO in solution, as well as for HBO incorporated in DNA. The typical time for the excited-state intramolecular proton-transfer reaction of the syn-enol tautomer in solution and in DNA has been determined to be 150 fs. In addition, the lifetimes of the keto, the anti-enol and the 'solvated enol' tautomer forms were determined in protic solvents, aprotic solvents and DNA. Picosecond rise and decay components in the fluorescence transients with characteristic times between 3 and 25 ps are also observed and attributed to the effects of vibrational cooling.",
author = "H. Wang and H. Zhang and Abou-Zied, {O. K.} and C. Yu and Romesberg, {F. E.} and M. Glasbeek",
year = "2003",
month = "1",
day = "10",
doi = "10.1016/S0009-2614(02)01741-4",
language = "English",
volume = "367",
pages = "599--608",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier",
number = "5-6",

}

TY - JOUR

T1 - Femtosecond fluorescence upconversion studies of excited-state proton-transfer dynamics in 2-(2′-hydroxyphenyl)benzoxazole (HBO) in liquid solution and DNA

AU - Wang, H.

AU - Zhang, H.

AU - Abou-Zied, O. K.

AU - Yu, C.

AU - Romesberg, F. E.

AU - Glasbeek, M.

PY - 2003/1/10

Y1 - 2003/1/10

N2 - A femtosecond fluorescence upconversion study is reported for HBO in solution, as well as for HBO incorporated in DNA. The typical time for the excited-state intramolecular proton-transfer reaction of the syn-enol tautomer in solution and in DNA has been determined to be 150 fs. In addition, the lifetimes of the keto, the anti-enol and the 'solvated enol' tautomer forms were determined in protic solvents, aprotic solvents and DNA. Picosecond rise and decay components in the fluorescence transients with characteristic times between 3 and 25 ps are also observed and attributed to the effects of vibrational cooling.

AB - A femtosecond fluorescence upconversion study is reported for HBO in solution, as well as for HBO incorporated in DNA. The typical time for the excited-state intramolecular proton-transfer reaction of the syn-enol tautomer in solution and in DNA has been determined to be 150 fs. In addition, the lifetimes of the keto, the anti-enol and the 'solvated enol' tautomer forms were determined in protic solvents, aprotic solvents and DNA. Picosecond rise and decay components in the fluorescence transients with characteristic times between 3 and 25 ps are also observed and attributed to the effects of vibrational cooling.

UR - http://www.scopus.com/inward/record.url?scp=0037427655&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037427655&partnerID=8YFLogxK

U2 - 10.1016/S0009-2614(02)01741-4

DO - 10.1016/S0009-2614(02)01741-4

M3 - Article

VL - 367

SP - 599

EP - 608

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 5-6

ER -