Tracing ultrafast hydrogen migration in allene in intense laser fields by triple-ion coincidence momentum imaging
Tracing ultrafast hydrogen migration in allene in intense laser fields by triple-ion coincidence momentum imaging
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DOI：
10.1063/1.3251032
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发表时间：
2009-10-21
影响因子：
4.4
通讯作者：
Yamanouchi, Kaoru
中科院分区：
文献类型：
--
作者：
Xu, Huailiang;Okino, Tomoya;Yamanouchi, Kaoru
利用三离子符合动量成像技术研究了强激光场中氢在丙二烯（CH（2）=C=CH（2））中的超快迁移。覆盖整个范围内的一个丙二烯分子的迁移质子可视化的动量相关图和三重电荷的丙二烯的几何结构重建从所观察到的碎片离子的动量矢量。氢迁移的程度被发现在选择性地打破两个最初等价的C-C化学键，成为不等价的过程中的氢迁移中的一个起着决定性的作用。(C)2009年美国物理学会。[doi：10.1063/1.3251032]
Ultrafast hydrogen migration in allene (CH(2)=C=CH(2)) in intense laser fields was investigated by triple-ion coincidence momentum imaging. The migrating proton covering the entire range of an allene molecule was visualized by the momentum correlation maps and by the geometrical structure of triply charged allene reconstructed from the observed momentum vectors of fragment ions. The extent of hydrogen migration was found to play a decisive role in breaking selectively one of the two initially equivalent C-C chemical bonds that become inequivalent in the course of the hydrogen migration. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3251032]