Partial ionization cross-sections of C2F6

被引：15

作者：

Jiao, CQ ^{[1
]}

Garscadden, A ^{[1
]}

Haaland, PD ^{[1
]}

机构：

[1] USAF, Res Lab, Prop Directorate, Wright Patterson AFB, OH 45433 USA

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 310卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(99)00782-4

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 dissociative ionization of perfluoroethane, C2F6, by electron impact has been measured under single-collision conditions using Fourier transform mass spectrometry. The total ionization cross-section rises to a maximum value of 8.9 +/- 1.3 x 10(-16) cm(2) at 70 eV. CF3+ is the most prominent ion fragment at all energies, followed by C2F5+, CF+, and CF2+. C(2)F(6)(+)f is not observed. The ratio of dissociative ionization to total dissociation increases from 27 +/- 5% at 22 eV to 89 +/- 11% at 70 eV. The total cross-section and the partitioning among the dissociative channels is examined in the context of the binary encounter Bethe (BEB) molecular orbital model. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：52 / 56

页数：5

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