Femtosecond solvation dynamics of hydrogen-bonding complexes

E. Pines; D. Pines; Y. Z. Ma; G. R. Fleming

doi:10.1016/B978-044451656-5/50036-0

Femtosecond solvation dynamics of hydrogen-bonding complexes

E. Pines, D. Pines, Y. Z. Ma, G. R. Fleming

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

1 Scopus citations

Abstract

Hydrogen bonds are among the most common chemical interactions in condensed phases. Hydrogen bonds also consist of an important part of solute-solvent interactions in solution. These interactions are usually referred to as "specific" solute-solvent interactions. The terminology is used to distinguish between hydrogen-bonding interactions, which are short-range, and solute solvent interactions originating with the dielectric properties of the solvent, which are long-range compared to the molecular graining of the solvent. This chapter focuses on the dynamic aspects of the hydrogen-bonding interaction of some hydroxy-photoacids (ROH). By optically exciting the photoacid, a sudden increase in the acidity of the OH group is induced. The enhanced acidity has caused a sudden increase in the hydrogen-bonding interactions of the photoacid usually of the type O-H-O. The hydrogen-bonding complex (ground state) of the photoacid is prepared in solutions of the photoacid in non-polar solvents and in presence of suitable complexing oxygen bases such as DMSO.

Original language	English
Title of host publication	Femtochemistry and Femtobiology
Subtitle of host publication	Ultrafast Events in Molecular Science
Publisher	Elsevier Inc.
Pages	185-188
Number of pages	4
ISBN (Electronic)	9780080506265
ISBN (Print)	9780444516565
DOIs	https://doi.org/10.1016/B978-044451656-5/50036-0
State	Published - Apr 16 2004
Externally published	Yes

Funding

GRF acknowledges financial support of the National Science Foundation.

Funders	Funder number
National Science Foundation

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10.1016/B978-044451656-5/50036-0

Cite this

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AB - Hydrogen bonds are among the most common chemical interactions in condensed phases. Hydrogen bonds also consist of an important part of solute-solvent interactions in solution. These interactions are usually referred to as "specific" solute-solvent interactions. The terminology is used to distinguish between hydrogen-bonding interactions, which are short-range, and solute solvent interactions originating with the dielectric properties of the solvent, which are long-range compared to the molecular graining of the solvent. This chapter focuses on the dynamic aspects of the hydrogen-bonding interaction of some hydroxy-photoacids (ROH). By optically exciting the photoacid, a sudden increase in the acidity of the OH group is induced. The enhanced acidity has caused a sudden increase in the hydrogen-bonding interactions of the photoacid usually of the type O-H-O. The hydrogen-bonding complex (ground state) of the photoacid is prepared in solutions of the photoacid in non-polar solvents and in presence of suitable complexing oxygen bases such as DMSO.

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Femtosecond solvation dynamics of hydrogen-bonding complexes

Abstract

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