Determination of Energy-Transfer Distributions in Ionizing Ion-Molecule Collisions
Determination of Energy-Transfer Distributions in Ionizing Ion-Molecule Collisions
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DOI：
10.1103/physrevlett.117.073201
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发表时间：
2016-08-08
影响因子：
8.6
通讯作者：
Rousseau, P.
中科院分区：
文献类型：
--
作者：
Maclot, S.;Delaunay, R.;Rousseau, P.
采用离子碰撞、选态光电离实验和量子化学计算相结合的方法，研究了核苷胸苷在气相中的电离和裂解过程。在这两种类型的实验中测量的质谱之间的比较，使我们能够准确地确定作为碰撞的结果在电离分子中沉积的能量的分布。两种实验技术和理论的关系表明，电离分子的激发态与计算的解离途径以及电荷局域化或离域之间存在很强的相关性。
The ionization and fragmentation of the nucleoside thymidine in the gas phase has been investigated by combining ion collision with state-selected photoionization experiments and quantum chemistry calculations. The comparison between the mass spectra measured in both types of experiments allows us to accurately determine the distribution of the energy deposited in the ionized molecule as a result of the collision. The relation of two experimental techniques and theory shows a strong correlation between the excited states of the ionized molecule with the computed dissociation pathways, as well as with charge localization or delocalization.