Experimental probes of transient neutral species using dissociative charge exchange
Experimental probes of transient neutral species using dissociative charge exchange
复制标题
使用解离电荷交换的瞬态中性物质的实验探针
DOI：
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
R. Continetti
中科院分区：
文献类型：
--
作者：
John D Savee;J. Mann;C. Laperle;R. Continetti
本文综述了分子阳离子与铯的电荷交换(CE)产生的暂态中性物种解离动力学的研究进展。近50年来，在快离子束中使用平移光谱的CE实验为理解瞬变物种高位激发态的光谱和动力学做出了重要贡献。与喷射冷却超音速膨胀离子源相结合的时间和位置敏感探测技术的最新进展使测量能够产生复杂分子物种发生的解离过程的前所未有的细节。综述了该技术在研究H_3和均三嗪的二体和三体解离以及H_N_2自由基与H_ + _2的二体离解反应中的应用。这些系统说明了通过检查产物动能释放分布和详细测量三体解离过程中的动量分配而获得的对解离态动力学的洞察。
In this review, recent progress on studies of the dissociation dynamics of transient neutral species produced by charge exchange (CE) of molecular cations with caesium is reviewed. CE experiments using translational spectroscopy in fast ion beams have made important contributions to understanding the spectroscopy and dynamics of high-lying excited states of transient species for some 50 years. Recent advances in time- and position-sensitive detection techniques coupled to jet-cooled supersonic expansion ion sources have allowed measurements yielding unprecedented detail for dissociation processes occurring from complex molecular species. Applications of this technique to studying the two- and three-body dissociation of H3 and sym-triazine, as well as the two-body dissociation of the HN2 radical to H + N2 are reviewed. These systems illustrate the insights gained into the dynamics of the dissociative states from examination of product kinetic energy release distributions and detailed measurements of momentum partitioning in three-body dissociation processes.
通过中和-再电离质谱法研究不寻常的简单分子。
DOI：
10.1126/science.2305261
发表时间：
1990
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
McLafferty,FW
通讯作者：
McLafferty,FW
影响因子：
4.4
作者：
Bouakline, Foudhil;Althorpe, Stuart C.;Ruiz, Daniel Pelaez
通讯作者：
Ruiz, Daniel Pelaez