TOTAL ELECTRON-IMPACT IONIZATION CROSS-SECTIONS OF FREE MOLECULAR RADICALS - THE FAILURE OF THE ADDITIVITY RULE REVISITED

被引：29

作者：

DEUTSCH, H

CORNELISSEN, C

CESPIVA, L

BONACICKOUTECKY, V

MARGREITER, D

MARK, TD

机构：

[1] LEOPOLD FRANZENS UNIV,INST IONENPHYS,A-6020 INNSBRUCK,AUSTRIA

[2] ERNST MORITZ ARNDT UNIV,FACHBEREICH PHYS,D-17489 GREIFSWALD,GERMANY

[3] FREE UNIV BERLIN,INST PHYS & THEORET CHEM,D-14195 BERLIN,GERMANY

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1993年 / 129卷

关键词：

ADDITIVITY RULE; ELECTRON IMPACT; IONIZATION CROSS SECTIONS; MOLECULAR RADICALS;

D O I：

10.1016/0168-1176(93)87027-P

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：

Using the recently developed semiclassical DM approach we have calculated the absolute electron impact cross sections for single ionization of some selected molecular radicals (CHn=1-3 and SiFn=1-3) From threshold up to 80 eV. The present results confirm (i) a previously noted anomaly in the ordering of the SiFn cross sections (i.e. sigma(SiF) > sigma(SiF2) > sigma(SiF3)) and (ii) the failure of the simple additivity rule in predicting this anomaly.

引用

页码：43 / 48

页数：6