FORMATION AND STABILITY OF SINGLY AND DOUBLY-CHARGED MGAR(N) CLUSTERS

被引：42

作者：

VELEGRAKIS, M

LUDER, C

机构：

[1] Foundation for Research and Technology - Hellas (FORTH), Institute of Electronic Structure and Laser, Heraklion, 71110 Crete

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 223卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(94)00415-3

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：

Clusters of the type MgAr(N)z+ (z = 1, 2) are produced using a combination of pulsed nozzle and laser ablation techniques. The measured time-of-flight mass spectra of singly charged clusters show enhanced intensity at total number of atoms N+1 = 13, 19, 23, 26, 29, 32, 46, 55. The observation of these 'magic' numbers can be interpreted in terms of an icosahedral close-packing structure for the cluster. Doubly charged species of small size, which appear to exhibit structure other than icosahedral are also observed.

引用

页码：139 / 142

页数：4

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