Kinetic energy dependence of ion-molecule reactions: Guided ion beams and threshold measurements

被引:216
作者
Armentrout, PB [1 ]
机构
[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA
基金
美国国家科学基金会;
关键词
bond energies; guided ion beams; octopole; thermochemistry; thresholds;
D O I
10.1016/S1387-3806(00)00310-9
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
Over the past 20 years, ion beam methods have become a reliable experimental tool for the determination of thermochemical data. Confidence in these methods has required the synergistic development of improved instrumentation and enhanced analysis techniques. Guided ion beams, as introduced by Teloy and Gerlich in 1974 [Chem. Phys. 4 (1974) 417], have revolutionized our ability to measure accurate integral cross sections of ion-molecule reactions throughout the energy range of chemical interest. Such high quality data have then necessitated empirical and theoretical advances in our understanding of the kinetic energy dependence of chemical reactions. This need has led to increasingly sophisticated models that permit the extraction of meaningful thermodynamic values from the analysis of kinetic energy dependent data. Key contributions in the development of both advances are reviewed here. (C) 2000 Elsevier Science B.V.
引用
收藏
页码:219 / 241
页数:23
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