THE ULTRAVIOLET EMISSION-SPECTRUM OF LAO

被引：18
|
作者：
CARETTE, P
机构：
[1] Laboratoire de Spectroscopie Moléculaire, Unité de Recherche Associée au C.N.R.S. no 779, Université de Lille Flandres Artois, 59655 Villeneuve d'Ascq Cedex
来源：
JOURNAL OF MOLECULAR SPECTROSCOPY | 1990年 / 140卷 / 02期
关键词：
D O I：
10.1016/0022-2852(90)90140-L
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The ultraviolet emission spectrum of LaO, obtained under improved experimental conditions, has been reexamined. The high-resolution rotational analysis of the 0, 0 and 0, 1 F2Σ+ → X2Σ+ and 0, 0 D2Σ+ → X2Σ+ bands shows that the two excited electronic states F2Σ+ and D2Σ+ exhibit characteristic features of a bβJ coupling scheme. A ligand field multiconfigurational calculation shows that these states arise mainly from the 7s and 8s configurations and gives theoretical support to the observed coupling case. © 1990.
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页码：269 / 279
页数：11
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