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
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.
引用
收藏
页码:269 / 279
页数:11
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