PHOTOIONIZATION AND FRAGMENTATION DYNAMICS OF NA3 STUDIED BY ION AND ELECTRON KINETIC-ENERGY ANALYSIS

被引：13

作者：

BUHLER, B

THALWEISER, R

GERBER, G

机构：

[1] Fakultät für Physik, Universität Freiburg

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 188卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(92)90017-H

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：

Two-photon ionization and fragmentation of the metal cluster Na3 via the D (3 2A2) state have been studied with nanosecond pulsed dye lasers in the wavelength range 410-440 nm. We report on a molecular-beam experiment where, for this neutral metal cluster, the photoelectron spectrum and the mass and released kinetic energies of the ionic fragments Na+ and Na2+ as well as their angular distributions have been measured. On the basis of the ion and electron spectra, we conclude that ionization of Na3 and subsequent fragmentation of Na3+ into Na2+ (X) + Na(3s) and Na+ + Na2 (X) occur rather than fragmentation of the excited neutral Na3 cluster with subsequent excited-fragment photoionization.

引用

页码：247 / 253

页数：7

共 33 条

[31] ABINITIO CALCULATIONS OF THE ELECTRONIC-STRUCTURE OF SMALL NA-NORMAL, NA-NORMAL-+, K-NORMAL, AND K-NORMAL-+ CLUSTERS (N-LESS-THAN-OR-EQUAL-TO-6) INCLUDING CORE VALENCE INTERACTION [J].