Solvation in highly nonideal solutions

A study of aqueous 1-propanol using the coumarin 153 probe

Hideaki Shirota, Ed Castner

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

We have investigated the anomalous behavior of aqueous 1-propanol binary solutions using a typical fluorescence probe molecule, coumarin 153. We present data on the fluorescence lifetimes, fluorescence anisotropies, and solvent reorganization dynamics, as well as the steady-state absorption and emission spectra of coumarin 153 in the binary solutions. The rotational diffusion and solvation time constants depend strongly on the content of 1-propanol, especially at low 1-propanol mole fractions. Spectroscopic results presented here are consistent with prior light scattering [G. H. Großmann and K. H. Ebert, Ber. Bunsenges. Phys. Chem. 85, 1026 (1981)], small angle x-ray scattering [H. Hayashi, K. Nishikawa, and T. Iijima, J. Phys. Chem. 94, 8334 (1990)], and dielectric relaxation [S. Mashimo, T. Umehara, and H. Redlin, J. Chem. Phys. 95, 6257 (1991)] data. The anomalous dynamics features likely arise from the effect of the preferential solvation due to the 1-propanol clustering.

Original languageEnglish
Pages (from-to)2367-2376
Number of pages10
JournalJournal of Chemical Physics
Volume112
Issue number5
Publication statusPublished - Feb 1 2000

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1-Propanol
Solvation
solvation
fluorescence
probes
Fluorescence
x ray scattering
time constant
Dielectric relaxation
emission spectra
light scattering
Light scattering
absorption spectra
life (durability)
anisotropy
Anisotropy
Scattering
X rays
Molecules
coumarin 153

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Solvation in highly nonideal solutions : A study of aqueous 1-propanol using the coumarin 153 probe. / Shirota, Hideaki; Castner, Ed.

In: Journal of Chemical Physics, Vol. 112, No. 5, 01.02.2000, p. 2367-2376.

Research output: Contribution to journalArticle

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