VIBRATIONAL COOLING PROCESS IN SOLUTION PROBED BY PICOSECOND TIME-RESOLVED RAMAN-SPECTROSCOPY - ANALYSIS OF THE COOLING KINETICS

被引：21

作者：

IWATA, K

HAMAGUCHI, H

机构：

[1] Molecular Spectroscopy Laboratory, The Kanagawa Academy of Science and Technology (KAST), Kawasaki, 213, KSP East 301

来源：

JOURNAL OF MOLECULAR LIQUIDS | 1995年 / 65-6卷

关键词：

D O I：

10.1016/0167-7322(95)00889-0

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：

The vibrational cooling process in the first excited singlet (S-1) state of trans-stilbene in hexane was observed at room temperature with picosecond pump-probe time-resolved Raman spectroscopy. From the time-dependent change of the peak position of the 1180 cm(-1) band, the cooling kinetics of the solute stilbene was clarified. The cooling kinetics was well explained by a simple model in which the vibrational cooling rate of the solute molecule is controlled by the heat conduction in the surrounding solvent. The simulated cooling curves for two different initial heat distributions (delta-function and box function) are compared with the observed values.

引用

页码：417 / 420

页数：4

共 10 条

[1]

ELSESSER T, 1991, ANNU REV PHYS CHEM, V42, P83

[2] EXCHANGE MODEL OF VIBRATIONAL DEPHASING IN S1 TRANS-STILBENE IN SOLUTION AND ITS POSSIBLE CORRELATION WITH THE ISOMERIZATION REACTION [J].

HAMAGUCHI, H ;

IWATA, K .

CHEMICAL PHYSICS LETTERS, 1993, 208 (5-6) :465-470

[3] VIBRATIONAL MODE-SELECTIVE EFFECTS IN THE PICOSECOND TIME-RESOLVED RESONANCE RAMAN-SPECTRUM OF SINGLET EXCITED TRANS-STILBENE [J].

HESTER, RE ;

MATOUSEK, P ;

MOORE, JN ;

PARKER, AW ;

TONER, WT ;

TOWRIE, M .

CHEMICAL PHYSICS LETTERS, 1993, 208 (5-6) :471-478

[4] VIBRATIONAL-ENERGY DISSIPATION PROCESS IN SOLUTION - PICOSECOND LASER PHOTOLYSIS STUDIES OF BIPHENYLENE [J].

HIRATA, Y ;

OKADA, T .

CHEMICAL PHYSICS LETTERS, 1991, 187 (03) :203-207

[5] PICOSECOND TIME-RESOLVED RAMAN-SPECTROSCOPY OF S1 P-TERPHENYL AND P-TERPHENYL-D14 IN SOLUTION - TIME-DEPENDENT CHANGES OF RAMAN BAND SHAPES [J].

IWATA, K ;

HAMAGUCHI, H .

JOURNAL OF RAMAN SPECTROSCOPY, 1994, 25 (7-8) :615-621

[6] CONSTRUCTION OF A TRANSFORM-LIMITED PICOSECOND TIME-RESOLVED RAMAN SPECTROMETER [J].

IWATA, K ;

YAMAGUCHI, S ;

HAMAGUCHI, H .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1993, 64 (08) :2140-2146

[7] PICOSECOND STRUCTURAL RELAXATION OF S1 TRANS-STILBENE IN SOLUTION AS REVEALED BY TIME-RESOLVED RAMAN-SPECTROSCOPY [J].

IWATA, K ;

HAMAGUCHI, H .

CHEMICAL PHYSICS LETTERS, 1992, 196 (05) :462-468

[8]

IWATA K, IN PRESS

[9] PICOSECOND RESONANCE RAMAN STUDIES OF VIBRATIONAL COOLING OF ELECTRONICALLY EXCITED TRANS-STILBENE IN ALCOHOLS AND ALKANES [J].

QIAN, J ;

SCHULTZ, SL ;

BRADBURN, GR ;

JEAN, JM .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (41) :10638-10644

[10] SOLVENT SOLUTE INTERACTIONS PROBED BY PICOSECOND TRANSIENT RAMAN-SPECTROSCOPY - MODE-SPECIFIC VIBRATIONAL DYNAMICS IN S1 TRANS-STILBENE [J].

WEAVER, WL ;

HUSTON, LA ;

IWATA, K ;

GUSTAFSON, TL .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (22) :8956-8961

← 1 →