Ne2+[II (1/2)u]: radiative decay and electronic predissociation.
Ne2+[II (1/2)u]: radiative decay and electronic predissociation.
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Ne2 [II (1/2)u]：辐射衰变和电子预解离。
DOI：
10.1039/b414368j
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Märk,TilmannD
中科院分区：
文献类型：
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作者：
Matt-Leubner,Sara;Fedor,Juraj;Parajuli,Rajendra;Stamatovic,Aleksandar;Echt,Olof;Hagelberg,Frank;Głuch,Krzysztof;Probst,Michael;Scheier,Paul;Märk,TilmannD
通过测量和分析高分辨动能释放分布，研究了氖二聚体离子的亚稳态碎裂。数据通过改进的MIKE（质量分析离子动能）扫描技术获得。由于高能量分辨率，可以区分μs时间范围内产生具有不同动能分布的Ne+离子的两种不同反应机制。理论研究的基础上从头计算的势能曲线允许指定的反应，在激发的Ne 2+离子的特定电子跃迁。不寻常的双峰动能释放分布来自长寿命的Ne 2 + II（1/2）u态的辐射和非辐射衰变之间的竞争。
Metastable fragmentation of neon dimer ions has been investigated by measuring and analyzing high resolution kinetic energy release distributions. Data were obtained by a modified MIKE (mass-analyzed ion kinetic energy) scan technique. Due to the high energy resolution it was possible to distinguish two different reaction mechanisms in the μs time regime which produce Ne+ ions with different kinetic energy distributions. Theoretical studies based on ab initio calculations of potential energy curves allowed the assignment of the reactions to specific electronic transitions in the excited Ne2+ ion. The unusual bimodal kinetic energy release distribution arises from competition between radiative and non radiative decay of the long-lived Ne2+ II(1/2)u state.