Stability of the ground state vinylidene anion H2CC-

被引:31
作者
Jensen, MJ [1 ]
Pedersen, UV
Andersen, LH
机构
[1] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark
[2] Aarhus Univ, Inst Storage Ring Facil, DK-8000 Aarhus, Denmark
关键词
D O I
10.1103/PhysRevLett.84.1128
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A technique to measure very low collisionless decay rates of ionic species has been applied at a new electrostatic storage ring to obtain the rate for spontaneous rearrangement of the vinylidene anion to neutral acetylene. The measurement yields a rate of k(0) = (0.009 +/- 0.006) s(-1), corresponding to a natural lifetime of the vinylidene anion uf tau(0) similar or equal to 110 s.
引用
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页码:1128 / 1131
页数:4
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