Solvation in highly nonideal solutions: A study of aqueous 1-propanol using the coumarin 153 probe

被引：77

作者：

Shirota, H ^{[1
]}

Castner, EW ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Chem, Piscataway, NJ 08854 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2000年 / 112卷 / 05期

关键词：

D O I：

10.1063/1.480803

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2000 American Institute of Physics. [S0021-9606(00)50605-9].

引用

页码：2367 / 2376

页数：10

共 90 条

[1]

BAGCHI B, 1991, ADV CHEM PHYS, V80, P1

[2] DYNAMICS OF SOLVATION AND CHARGE-TRANSFER REACTIONS IN DIPOLAR LIQUIDS [J].

BAGCHI, B .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1989, 40 :115-141

[3]

Bagno A, 1999, CHEM-EUR J, V5, P1291, DOI 10.1002/(SICI)1521-3765(19990401)5:4<1291::AID-CHEM1291>3.0.CO

[4]

2-M

[5]

Barbara P. F., 1990, ADV PHOTOCHEM, V15, P1, DOI [DOI 10.1002/9780470133453.CHL, DOI 10.1103/PhysRevLett.88.158101]

[6] FEMTOSECOND SOLVATION DYNAMICS DETERMINING THE BAND SHAPE OF STIMULATED-EMISSION FROM A POLAR STYRYL DYE [J].

BINGEMANN, D ;

ERNSTING, NP .

JOURNAL OF CHEMICAL PHYSICS, 1995, 102 (07) :2691-2700

[7] Electronic spectral shifts, reorganization energies, and local density augmentation of Coumarin 153 in supercritical solvents [J].

Biswas, R ;

Lewis, JE ;

Maroncelli, M .

CHEMICAL PHYSICS LETTERS, 1999, 310 (5-6) :485-494

[8] Fast events in protein folding: The time evolution of primary processes [J].

Callender, RH ;

Dyer, RB ;

Gilmanshin, R ;

Woodruff, WH .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1998, 49 :173-202

[9] Solvent dynamics derived from optical Kerr effect, dielectric dispersion, and time-resolved Stokes shift measurements: An empirical comparison [J].

Castner, EW ;

Maroncelli, M .

JOURNAL OF MOLECULAR LIQUIDS, 1998, 77 (1-3) :1-36

[10]

CASTNER EW, UNPUB J PHYS CHEM

← 1 2 3 4 5 6 7 8 9 →