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

页码：600 / 604

页数：5

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