THE LONG-RANGE POTENTIAL OF THE K-2 X(1)SIGMA(+)(G) GROUND ELECTRONIC-STATE UP TO 15 ANGSTROM

被引:64
作者
AMIOT, C [1 ]
VERGES, J [1 ]
FELLOWS, CE [1 ]
机构
[1] UNIV FED FLUMINENSE,ESPECTROSCOPIA & LASER LAB,BR-24000 NITEROI,RJ,BRAZIL
关键词
D O I
10.1063/1.470245
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
Titanium sapphire laser induced fluorescence spectra of the A (1) Sigma(u)(+) --> Chi (1) Sigma(g)(+) electronic system have been recorded at high resolution by Fourier transform spectroscopy. Ground state vibrational levels are observed up to nu = 81 corresponding to an internuclear distance of 15.4 Angstrom and to 99.96% of the potential well depth. A long range study of the potential energy curves (RRR and IPA) allowed the determination of the coefficients of the dispersion energy (multipolar expansion representation) and of the exchange energy (exponential representation). The dissociation energy is found to be 4450.75 +/- 0.15 cm(-1). (C) 1995 American Institute of Physics.
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页码:3350 / 3356
页数:7
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