Velocity map ion imaging study of Ar2+ photodissociation

被引：16

作者：

Maner, J. A. ^{[1
]}

Mauney, D. T. ^{[1
]}

Duncan, M. A. ^{[1
]}

机构：

[1] Univ Georgia, Dept Chem, Athens, GA 30602 USA

来源：

CHEMICAL PHYSICS LETTERS | 2017年 / 671卷

基金：

美国国家科学基金会;

关键词：

VIBRATIONALLY MEDIATED PHOTODISSOCIATION; PHOTOELECTRON-SPECTROSCOPY; PHOTOFRAGMENT SPECTROSCOPY; ELECTRONIC STATES; MASS-SPECTROMETER; POTENTIAL CURVES; CHARGE-TRANSFER; CROSS-SECTIONS; GAS; DYNAMICS;

D O I：

10.1016/j.cplett.2017.01.042

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：

The argon dimer cation is produced in a plasma generated by a laser spark in a supersonic expansion. The cold ions are mass selected and investigated by photodissociation at 355 nm, with velocity map imaging of the Ar+. photofragment. Using the radius of the image, we determine the kinetic energy release and derive the ground state dissociation energy of Ar-2(+) as D-0" = 1.32 +0.03/0.02 eV. Additionally, the angular distribution is described with 13 = 1.71-1.95, consistent with excitation of the parallel-type (2)Sigma(+<- 2)(g)Sigma(+)(u)transition. (c) 2017 Elsevier B.V. All rights reserved.

引用

收藏

页码：182 / 185

页数：4

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