Dynamics of an excited acid in 1-propanol-water mixtures

M. Than Htun; A. Suwaiyan; Uwe K.A. Klein

doi:10.1016/0009-2614(95)00855-X

Dynamics of an excited acid in 1-propanol-water mixtures

M. Than Htun^*
, A. Suwaiyan
, Uwe K.A. Klein

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

The excited state proton transfer reaction of 4-hydroxy-1-naphthalenesulphonate in 1-propanol-water mixtures has been studied at six different temperatures ranging from 5 to 60°C. Because of the hydrophobic interaction in these mixtures, the dissociation of the probe cannot be explained by a simple water dimer model which we found to be applicable to methanol-water and ethanol-water mixtures. In 1-propanol-water mixtures the proton acceptor concentration, however, shows a linear dependence on the water concentration above a certain critical concentration of water. This behavior is explained by a new model assuming a water dimer within a water cluster to be the effective proton acceptor.

Original language	English
Pages (from-to)	512-518
Number of pages	7
Journal	Chemical Physics Letters
Volume	243
Issue number	5-6
DOIs	https://doi.org/10.1016/0009-2614(95)00855-X
State	Published - 22 Sep 1995

Bibliographical note

Funding Information:
This work is part of the Laser Research Program supported by the Research Institute, KFUPM. Thanks are due to Professor M. Hauser from Stuttgart University for providing us the sodium salt of 4-hydroxy-l-naphthalenesulphonic acid, and Professor F. AI-Adel and Dr. A. A1-Arfaj for their continuous support and encouragement.

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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Cite this

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title = "Dynamics of an excited acid in 1-propanol-water mixtures",

abstract = "The excited state proton transfer reaction of 4-hydroxy-1-naphthalenesulphonate in 1-propanol-water mixtures has been studied at six different temperatures ranging from 5 to 60°C. Because of the hydrophobic interaction in these mixtures, the dissociation of the probe cannot be explained by a simple water dimer model which we found to be applicable to methanol-water and ethanol-water mixtures. In 1-propanol-water mixtures the proton acceptor concentration, however, shows a linear dependence on the water concentration above a certain critical concentration of water. This behavior is explained by a new model assuming a water dimer within a water cluster to be the effective proton acceptor.",

author = "\{Than Htun\}, M. and A. Suwaiyan and Klein, \{Uwe K.A.\}",

note = "Funding Information: This work is part of the Laser Research Program supported by the Research Institute, KFUPM. Thanks are due to Professor M. Hauser from Stuttgart University for providing us the sodium salt of 4-hydroxy-l-naphthalenesulphonic acid, and Professor F. AI-Adel and Dr. A. A1-Arfaj for their continuous support and encouragement.",

year = "1995",

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doi = "10.1016/0009-2614(95)00855-X",

language = "English",

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T1 - Dynamics of an excited acid in 1-propanol-water mixtures

AU - Than Htun, M.

AU - Suwaiyan, A.

AU - Klein, Uwe K.A.

N1 - Funding Information: This work is part of the Laser Research Program supported by the Research Institute, KFUPM. Thanks are due to Professor M. Hauser from Stuttgart University for providing us the sodium salt of 4-hydroxy-l-naphthalenesulphonic acid, and Professor F. AI-Adel and Dr. A. A1-Arfaj for their continuous support and encouragement.

PY - 1995/9/22

Y1 - 1995/9/22

N2 - The excited state proton transfer reaction of 4-hydroxy-1-naphthalenesulphonate in 1-propanol-water mixtures has been studied at six different temperatures ranging from 5 to 60°C. Because of the hydrophobic interaction in these mixtures, the dissociation of the probe cannot be explained by a simple water dimer model which we found to be applicable to methanol-water and ethanol-water mixtures. In 1-propanol-water mixtures the proton acceptor concentration, however, shows a linear dependence on the water concentration above a certain critical concentration of water. This behavior is explained by a new model assuming a water dimer within a water cluster to be the effective proton acceptor.

AB - The excited state proton transfer reaction of 4-hydroxy-1-naphthalenesulphonate in 1-propanol-water mixtures has been studied at six different temperatures ranging from 5 to 60°C. Because of the hydrophobic interaction in these mixtures, the dissociation of the probe cannot be explained by a simple water dimer model which we found to be applicable to methanol-water and ethanol-water mixtures. In 1-propanol-water mixtures the proton acceptor concentration, however, shows a linear dependence on the water concentration above a certain critical concentration of water. This behavior is explained by a new model assuming a water dimer within a water cluster to be the effective proton acceptor.

UR - https://www.scopus.com/pages/publications/0010791421

U2 - 10.1016/0009-2614(95)00855-X

DO - 10.1016/0009-2614(95)00855-X

M3 - Article

AN - SCOPUS:0010791421

SN - 0009-2614

VL - 243

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EP - 518

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 5-6

ER -

Dynamics of an excited acid in 1-propanol-water mixtures

Abstract

Bibliographical note

ASJC Scopus subject areas

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