Intensity dependence in laser flash photolysis experiments: Hydrated electron formation from ferrocyanide, tyrosine, and tryptophan
Publication type: Journal Article
Publication date: 1976-05-15
scimago Q1
wos Q2
SJR: 0.819
CiteScore: 5.3
Impact factor: 3.1
ISSN: 00219606, 10897690
DOI:
10.1063/1.431991
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract
The light intensity dependence in monophotonic and consecutive biphotonic processes under laser flash photolysis conditions is derived. In a monophotonic process the relation between photoproduct yield and exciting light intensity is linear but there is saturation at high intensity. In a biphotonic process there are three different regions. The relation is quadratic at low intensity, linear at medium intensity, and there is saturation at high intensity. The difference between the two linear relations is discussed. These results are applied for analyzing the process of hydrated electron formation from excited states of various substances. The process is found to be monophotonic for ferrocyanide. For tyrosine and tryptophan in aqueous neutral solutions, under the conditions of the laser experiments, a biphotonic process is observed. For the tyrosinate ion (alkaline solution pH 12) the findings are not conclusive. Other work on this topic is discussed with reference to the analysis.
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173
Total citations:
173
Citations from 2025:
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(1.73%)
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GOST
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Lachish U., SHAFFERMAN A., Stein G. Intensity dependence in laser flash photolysis experiments: Hydrated electron formation from ferrocyanide, tyrosine, and tryptophan // Journal of Chemical Physics. 1976. Vol. 64. No. 10. pp. 4205-4211.
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Lachish U., SHAFFERMAN A., Stein G. Intensity dependence in laser flash photolysis experiments: Hydrated electron formation from ferrocyanide, tyrosine, and tryptophan // Journal of Chemical Physics. 1976. Vol. 64. No. 10. pp. 4205-4211.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1063/1.431991
UR - https://doi.org/10.1063/1.431991
TI - Intensity dependence in laser flash photolysis experiments: Hydrated electron formation from ferrocyanide, tyrosine, and tryptophan
T2 - Journal of Chemical Physics
AU - Lachish, Uri
AU - SHAFFERMAN, Avigdor
AU - Stein, Gabriel
PY - 1976
DA - 1976/05/15
PB - AIP Publishing
SP - 4205-4211
IS - 10
VL - 64
SN - 0021-9606
SN - 1089-7690
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{1976_Lachish,
author = {Uri Lachish and Avigdor SHAFFERMAN and Gabriel Stein},
title = {Intensity dependence in laser flash photolysis experiments: Hydrated electron formation from ferrocyanide, tyrosine, and tryptophan},
journal = {Journal of Chemical Physics},
year = {1976},
volume = {64},
publisher = {AIP Publishing},
month = {may},
url = {https://doi.org/10.1063/1.431991},
number = {10},
pages = {4205--4211},
doi = {10.1063/1.431991}
}
Cite this
MLA
Copy
Lachish, Uri, et al. “Intensity dependence in laser flash photolysis experiments: Hydrated electron formation from ferrocyanide, tyrosine, and tryptophan.” Journal of Chemical Physics, vol. 64, no. 10, May. 1976, pp. 4205-4211. https://doi.org/10.1063/1.431991.