The binding energy of Ar to p-difluorobenzene-Ar.: How large are three-body effects in p-difluorobenzene-Ar2?

被引:7
作者
Bellm, SM [1 ]
Lawrance, WD [1 ]
机构
[1] Flinders Univ S Australia, Sch Chem Phys & Earth Sci, Adelaide, SA 5001, Australia
基金
澳大利亚研究理事会;
关键词
D O I
10.1016/S0009-2614(02)01899-7
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 technique of velocity map imaging has been used to determine the dissociation energy for the process p-difluorobenzene-Ar-2 --> p-difluorobenzene-Ar + Ar. The aim of the experiment was to obtain a value for comparison with the dissociation energy for the process p-difluorobenzene-Ar --> p-difluorobenzene + Ar in order to ascertain the extent of three-body effects. We find that the dissociation energy for the loss of an Ar atom from p-difluorobenzene-Ar-2 is 339 +/- 3 cm(-1), which is the same within experimental uncertainty as that for the loss of Ar from p-difluorobenzene-Ar (337 +/- 4 cm(-1)). We conclude that the presence of the first Ar affects the binding energy of the second by similar to2% or less. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:542 / 546
页数:5
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