Site-specific excited-state solute-solvent interactions probed by femtosecond vibrational spectroscopy

被引：147

作者：

Chudoba, C ^{[1
]}

Nibbering, ETJ ^{[1
]}

Elsaesser, T ^{[1
]}

机构：

[1] Max Born Inst Nichtlineare Opt & Kurzzeitspektros, D-12489 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.81.3010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Solute-solvent interactions in liquids are studied by femtosecond vibrational spectroscopy. Upon electronic excitation, the C=O stretching band of an organic probe molecule, a coumarin dye, dissolved in CHCl3 shows a strong blueshift on a 200 fs time scale. This demonstrates for the first time the cleavage of a site-specific intermolecular hydrogen bond with a polar solvent. After this fast process, the picosecond reorganization of the solvent due to dielectric relaxation is directly monitored via changes of the C=O vibrational frequency.

引用

页码：3010 / 3013

页数：4

共 19 条

[1] Regarding the deformation of molecules in a condensed phase, and the "hydrogen bond" [J].

Bauer, E ;

Magat, M .

JOURNAL DE PHYSIQUE ET LE RADIUM, 1938, 9 :319-330

[2] MOLECULAR-DYNAMICS MODELING OF TIME-RESOLVED FLUORESCENCE SHIFTS IN LIQUID SOLUTION [J].

BROWN, R .

JOURNAL OF CHEMICAL PHYSICS, 1995, 102 (22) :9059-9068

[3] System-bath correlation function probed by conventional and time-gated stimulated photon echo [J].

deBoeij, WP ;

Pshenichnikov, MS ;

Wiersma, DA .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (29) :11806-11823

[4]

Drexhage K. H., 1973, Dye lasers, P144

[5] THE CARBONYL STRETCHING BANDS IN THE INFRARED SPECTRA OF UNSATURATED LACTONES [J].

JONES, RN ;

ANGELL, CL ;

ITO, T ;

SMITH, RJD .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1959, 37 (12) :2007-2022

[6]

KIRKWOOD JG, 1937, J CHEM PHYS, V5, P14

[7] POLAR SOLVATION DYNAMICS OF POLYATOMIC SOLUTES - SIMULATION STUDIES IN ACETONITRILE AND METHANOL [J].

KUMAR, PV ;

MARONCELLI, M .

JOURNAL OF CHEMICAL PHYSICS, 1995, 103 (08) :3038-3060

[8] Continuum estimates of rotational dielectric friction and polar solvation [J].

Maroncelli, M .

JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (04) :1545-1555

[9] Ultrafast dipole solvation measured in the far infrared [J].

McElroy, R ;

Wynne, K .

PHYSICAL REVIEW LETTERS, 1997, 79 (16) :3078-3081

[10]

Mukamel S., 1995, Principles of Nonlinear Optical Spectroscopy

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