ELECTRON PHOTODETACHMENT OF THE MOLECULAR ANIONS OF SF6 AND SEVERAL PERFLUORINATED HYDROCARBONS

被引：21

作者：

MOCK, RS

GRIMSRUD, EP

机构：

[1] Department of Chemistry, Motana State University, Bozeman

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 184卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(91)87170-G

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 electron photodetachment (PD) spectra of the molecular anions of sulfur hexafluoride (SF6), perfluoromethylcyclohexane (C7F14), perfluorocyclohexane (C6F12), trans-perfluorodecaline (C10F18), and cis-perfluorodecaline (C10F18) at 150-degrees-C in nitrogen buffer gas at atmospheric pressure are reported. For all of these, PD was not detectable in the spectral range from 450 to 1200 nm. Relatively small PD cross sections (< 0.02 angstrom 2) were observed over portions of the spectral range from 300 to 450 nm. The onsets of PD for SF6- and C7F14- exceed the known electron affinities of SF6 and C7F14 by more than 2 eV, supporting previous suggestions that the stable geometries of both of these negative ions differ considerably from those of their parent molecules.

引用

页码：99 / 101

页数：3

共 18 条

[1] RATE COEFFICIENTS FOR THE ATTACHMENT REACTIONS OF ELECTRONS WITH C-C7F14, CH3BR, CF3BR, CH2BR2 AND CH3I DETERMINED BETWEEN 200-K AND 600-K USING THE FALP TECHNIQUE [J].