Branching ratios in dissociative recombination of the C2H2+ molecular ion

被引:53
作者
Derkatch, AM
Al-Khalili, A
Vikor, L
Neau, A
Shi, W
Danared, H
af Ugglas, M
Larsson, M
机构
[1] Univ Stockholm, Dept Phys, S-11385 Stockholm, Sweden
[2] Stockholm Univ, Manne Siegbahn Lab, S-10405 Stockholm, Sweden
关键词
D O I
10.1088/0953-4075/32/14/309
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Branching ratios in dissociative recombination of C2H2+ molecular ions with electrons were measured using the CRYRING heavy-ion storage ring. We have determined complete branching ratios for C2H2+ at collision energies between 0 and 7.4 meV. We found dissociative recombination of C2H2+ to be dominated by the two-body C2H + H and three-body C-2 + H + H channels, with branching ratios of 0.50 +/- 0.06 and 0.30 +/- 0.05, respectively. The branching to CH + CH was measured to be 0.13 +/- 0.01, whereas two other energetically allowed channels were found to be almost negligible.
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收藏
页码:3391 / 3398
页数:8
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