Upper stark state collisional relaxation cross sections for single rotational states of CH3F

被引：8

作者：

Vallance, C ^{[1
]}

Hu, WP ^{[1
]}

Harland, PW ^{[1
]}

机构：

[1] Univ Canterbury, Dept Chem, Christchurch 1, New Zealand

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1999年 / 103卷 / 06期

关键词：

D O I：

10.1021/jp983671g

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 radiofrequency electric resonance cell has been used to modulate individual rotational states present in a state-selected molecular beam of symmetric top molecules prepared for use in a beam attenuation experiment. Tagging states in this way allows cross sections for collisionally induced Delta M transitions to be measured for single rotational states. A hexapole transmission curve attenuation method reported earlier suffered from poor rotational state resolution and the measurement of cross sections was very time consuming in comparison to the method reported here. Cross sections measured using the two different methods show remarkably good agreement.

引用

页码：665 / 670

页数：6

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