SHELL STRUCTURE AND S-P HYBRIDIZATION IN SMALL ALUMINUM CLUSTERS

被引：41
|
作者：
GANTEFOR, G
EBERHARDT, W
机构：
[1] Institut für Festkr̈perforschung, Forschungszentrum Jülich
来源：
CHEMICAL PHYSICS LETTERS | 1994年 / 217卷 / 5-6期
关键词：
D O I：
10.1016/0009-2614(93)E1436-K
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：
Photoelectron spectra of Al-n(-) (n = 2-20) clusters are presented. Due to the improved energy resolution and the relatively high photon energy (h nu = 6.424 eV, ArF laser radiation) available in our experiment the spectra reveal the mechanism of the onset of the s-p hybridization occuring in these particles. Between Al-6(-)-Al-12(-) a mixing of the uppermost antibonding 3s derived orbital with the 3p band takes place which is observed simultaneously with the 2D-->3D structural transition predicted for Al clusters in this size range. Starting from Al-13(-) a pattern resembling an electronic shell structure is identified.
引用
收藏
页码：600 / 604
页数：5
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