DYNAMICS OF THE B-3-PI(0U+) AND A-3-PI(1U) STATES OF CHLORINE BY LASER-INDUCED FLUORESCENCE

被引:5
作者
MARTINEZ, E
BASTERRECHEA, FJ
CABANAS, B
PUYUELO, P
LOPEZ, MR
机构
[1] Universidad de Castilla-La Mancha, Ciudad Real
关键词
D O I
10.1155/LC.12.75
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
Chlorine B 3∏(0u+) state lifetimes have been measured by laser-induced fluorescence in several predissociated (v′ = 14-19, 21) and non-predissociated (v′ = 5-12) levels. Trial and error Franck-Condon calculations have been performed to check the nature and position of the predissociating state. The results have been used to give a value of Re for the A 3∏(1u) state responsible for predissociation, Re = 2.48 ± 0.01 angstrom. The obtained data show that interference effects due to crossing between B and A states modify the lifetimes of the B state appreciably. The inadequacy of the low-lying vibrational levels region, i.e. v′ < 8, to measure the radiative lifetime of the B state (τR(B)) is shown. Previous values for τR(B) can therefore be affected by considerable errors.
引用
收藏
页码:75 / 84
页数:10
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共 33 条
[21]   KINETICS OF THE INTENSE CHLORINE CHEMI-LUMINESCENCE IN A SUPERSONIC NOZZLE [J].
KERNASHITSKII, LA ;
NOSENKO, VE ;
NAUMOV, VV ;
KOCHELAP, VA ;
IZMAILOV, IA .
CHEMICAL PHYSICS LETTERS, 1985, 116 (2-3) :197-201
[22]   On the significance of Band spectrum. 2 [J].
Kronig, R. de L. .
ZEITSCHRIFT FUR PHYSIK, 1928, 50 (5-6) :347-362
[23]  
Lefebvre-Brion H., 1986, PERTURBATIONS SPECTR
[24]  
MARTINEZ E, IN PRESS J PHYS B
[25]   Halogen molecule spectra II - Interval relations and relative intensities in the long wave-length spectra [J].
Mulliken, RS .
PHYSICAL REVIEW, 1940, 57 (06) :500-515
[26]  
OKABE H, 1982, PHOTOCHEMISTRY SMALL
[27]   RATE DATA FOR INELASTIC-COLLISION PROCESSES IN THE DIATOMIC HALOGEN MOLECULES [J].
STEINFELD, JI .
JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1984, 13 (02) :445-553
[29]   IDENTIFICATION AND ANALYSIS OF THE D'-]A' TRANSITION IN THE EMISSION-SPECTRUM OF CL-2 [J].
TELLINGHUISEN, J ;
CHAKRABORTY, DK .
CHEMICAL PHYSICS LETTERS, 1987, 134 (06) :565-570
[30]   INTENSITY FACTORS FOR I2 BREVERSIBLEX BAND SYSTEM [J].
TELLINGHUISEN, J .
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 1978, 19 (02) :149-161