NEW EXPERIMENTAL-METHOD FOR STUDYING ROTATIONALLY STATE-SELECTED ION-MOLECULE REACTIONS

被引:53
作者
MACKENZIE, SR
SOFTLEY, TP
机构
[1] Physical Chemistry Laboratory, Oxford OX1 3QZ, South Parks Road
关键词
D O I
10.1063/1.467875
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
A new apparatus is described in which a beam of molecular ions in a selected vibration-rotation state is prepared by field ionization of high Rydberg states, in an adaptation of the zero-kinetic-energy photoelectron technique. The state-selected ions undergo low energy reactive collisions within a molecular beam and the ionic products are detected in a quadrupole mass filter. The Rydberg states are populated by two-color stepwise multiphoton excitation, and by tuning to the pseudocontinuum of high-Rydberg states associated with different vibration-rotation states of the ion core, different states of the ion are selected and the effect on reactivity determined. Some preliminary results for the H2+H2+→H 3+ reaction are reported. © 1994 American Institute of Physics.
引用
收藏
页码:10609 / 10617
页数:9
相关论文
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