MEASURED AND CALCULATED ABSOLUTE TOTAL CROSS-SECTIONS FOR THE SINGLE IONIZATION OF CFX AND NFX BY ELECTRON-IMPACT

被引：59
作者：
DEUTSCH, H
MARK, TD
TARNOVSKY, V
BECKER, K
CORNELISSEN, C
CESPIVA, L
BONACICKOUTECKY, V
机构：
[1] CUNY CITY COLL, DEPT PHYS, NEW YORK, NY 10031 USA
[2] UNIV GREIFSWALD, FACHBEREICH PHYS, D-17487 GREIFSWALD, GERMANY
[3] UNIV INNSBRUCK, INST IONENPHYS, A-6020 INNSBRUCK, AUSTRIA
[4] FREE UNIV BERLIN, INST PHYS & THEORET CHEM, D-14195 BERLIN, GERMANY
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 1994年 / 137卷
基金：
美国国家科学基金会;
关键词：
CROSS-SECTIONS; ELECTRON IMPACT IONIZATION; FREE RADICALS;
D O I：
10.1016/0168-1176(94)04053-2
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Various additivity rules and the Deutsch-Mark (DM) formalism have been used to calculate total absolute electron-impact cross-sections for single ionization of the CFx (x = 1-3) free radicals, the NFx (x = 1, 2) free radicals and the NF3 molecule. A comparison is made with experimentally determined total single ionization cross-sections which have been obtained from recently measured absolute partial ionization cross-sections for the parent and dissociative ionization of these species. The overall best agreement between the measured and the calculated cross-sections in terms of the absolute values, the shapes and the cross-section ordering was obtained using a recently proposed ''new'' additivity rule. Common trends and tendencies in the ionization cross-sections within each class of targets, CFx and NFx, and between the two target families CFx and NFx are highlighted and a comparison will be made with the previously measured and calculated ionization cross-sections for the SiFx (x = 1-3) free radicals.
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页码：77 / 91
页数：15
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