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.
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页码：43 / 48
页数：6
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