THE APPEARANCE ENERGY OF CF3+ FROM CF4 - ION MOLECULE REACTIONS RELATED TO THE THERMOCHEMISTRY OF CF3+

被引:43
作者
FISHER, ER [1 ]
ARMENTROUT, PB [1 ]
机构
[1] UNIV UTAH,DEPT CHEM,SALT LAKE CITY,UT 84112
来源
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1990年 / 101卷 / 01期
关键词
D O I
10.1016/0168-1176(90)80023-V
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
Guided ion beam mass spectrometry studies designed to measure the appearance energy for CF+3 from CF4 are reported. In contrast to a previous observation, we find that there is no flouride transfer equilibrium between CF+3. Rather, the thresholds for formation of CF+3 from reaction of ground state Kr+ (2P 3 2) with CF4 and from collision-induced dissociation of CF+3 by Xe are used to establish AE(CF+3/CF4).Both results are in good agreement although the former experiment yields a more precise value, namely 14.24 ± 0.07 eV. © 1990.
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页码:R1 / R6
页数:6
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