USING PUMP-PROBE FLUORESCENCE DEPLETION TO STUDY THE ROTATIONALLY RESOLVED SPECTRA AND THE J-DEPENDENT PREDISSOCIATION RATE OF CS2

Authors
LIOU HT CHANG YC HUANG KL LIN WC
Citation
Ht. Liou et al., USING PUMP-PROBE FLUORESCENCE DEPLETION TO STUDY THE ROTATIONALLY RESOLVED SPECTRA AND THE J-DEPENDENT PREDISSOCIATION RATE OF CS2, The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory, 101(36), 1997, pp. 6723-6727
Citations number
26
Categorie Soggetti
Chemistry Physical
Journal title
The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory → ACNP
ISSN journal
10895639
Volume
101
Issue
36
Year of publication
1997
Pages
6723 - 6727
Database
ISI
SICI code
1089-5639(1997)101:36<6723:UPFDTS>2.0.ZU;2-8
Abstract
By monitoring single vibronic level pump-probe fluorescence depletion, the rotationally resolved spectra of the 46 482 cm(-1) band of CS2 we re recorded. The molecular constants are v(0) = 46 481.51(11) cm(-1), B = 0.098 09(24) cm(-1), and D = 6.7(9.3) x 10(-8) cm(-1). The J-depen dent predissociation rate was analyzed. At low J levels the predissoci ation rate is dominated by the energy separation and the coupling betw een the bound and the repulsive states, while at high J levels the rat e is controlled by the tunneling through the barrier of the centrifuga l potential.