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Titolo:
Ultrafast dichroism spectroscopy of anthracene in solution. II. Solvation dynamics from a one-dimensional experiment
Autore:
Zhang, YH; Berg, MA;
Indirizzi:
Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA Univ S Carolina Columbia SC USA 29208 m & Biochem, Columbia, SC 29208 USA
Titolo Testata:
JOURNAL OF CHEMICAL PHYSICS
fascicolo: 9, volume: 115, anno: 2001,
pagine: 4223 - 4230
SICI:
0021-9606(20010901)115:9<4223:UDSOAI>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
STIMULATED PHOTON-ECHO; ROOM-TEMPERATURE LIQUIDS; NONPOLAR SOLVATION; REORGANIZATION ENERGIES; TRANSIENT ABSORPTION; DEPHASING DYNAMICS; SOLVENT DYNAMICS; PROTEIN-MATRIX; POLAR LIQUIDS; STOKES SHIFT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
51
Recensione:
Indirizzi per estratti:
Indirizzo: Berg, MA Univ S Carolina, Dept Chem & Biochem, Columbia, SC 29208 USA UnivS Carolina Columbia SC USA 29208 em, Columbia, SC 29208 USA
Citazione:
Y.H. Zhang e M.A. Berg, "Ultrafast dichroism spectroscopy of anthracene in solution. II. Solvation dynamics from a one-dimensional experiment", J CHEM PHYS, 115(9), 2001, pp. 4223-4230

Abstract

Experiments to determine the frequency autocorrelation function of an electronic transition (the "solvation function") inherently depend on a multidimensional response function. However, a degenerate transient absorption experiment, or "single-wave length transient hole burning" (SW-THB), provides a one-dimensional cut through this multidimensional space with sufficient information to uniquely determine the desired solvation function. We derive an analytical formula that relates the solvation function to the one-dimensional SW-THB signal. Sample calculations examine the effects of strong versus weak coupling to the solvent, the wavelength of the laser relative to the absorption spectrum and of unresolved fast relaxation components. We conclude that for many systems, SW-THB provides a simpler alternative to multidimensional methods for measuring solvation dynamics. (C) 2001 American Institute of Physics.

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Documento generato il 30/11/20 alle ore 03:19:37