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Heavy N+ ion transfer in doubly charged N2Ar van der Waals cluster.


ABSTRACT: Van der Waals clusters are weakly bound atomic/molecular systems and are an important medium for understanding micro-environmental chemical phenomena in bio-systems. The presence of neighboring atoms may open channels otherwise forbidden in isolated atoms/molecules. In hydrogen-bond clusters, proton transfer plays a crucial role, which involves mass and charge migration over large distances within the cluster and results in its fragmentation. Here we report an exotic transfer channel involving a heavy N+ ion observed in a doubly charged cluster produced by 1?MeV Ne8+ ions: (N2Ar)2+?N++NAr+. The neighboring Ar atom decreases the [Formula: see text] barrier height and width, resulting in significant shorter lifetimes of the metastable molecular ion state [Formula: see text]([Formula: see text]). Consequently, the breakup of the covalent N+-N+ bond, the tunneling out of the N+ ion from the [Formula: see text] potential well, as well as the formation of an N-Ar+ bound system take place almost simultaneously, resulting in a Coulomb explosion of N+ and NAr+ ion pairs.

SUBMITTER: Zhu X 

PROVIDER: S-EPMC7293282 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Heavy N<sup>+</sup> ion transfer in doubly charged N<sub>2</sub>Ar van der Waals cluster.

Zhu XiaoLong X   Hu XiaoQing X   Yan ShunCheng S   Peng YiGeng Y   Feng WenTian W   Guo DaLong D   Gao Yong Y   Zhang ShaoFeng S   Cassimi Amine A   Xu JiaWei J   Zhao DongMei D   Dong DaPu D   Hai Bang B   Wu Yong Y   Wang JianGuo J   Ma X X  

Nature communications 20200612 1


Van der Waals clusters are weakly bound atomic/molecular systems and are an important medium for understanding micro-environmental chemical phenomena in bio-systems. The presence of neighboring atoms may open channels otherwise forbidden in isolated atoms/molecules. In hydrogen-bond clusters, proton transfer plays a crucial role, which involves mass and charge migration over large distances within the cluster and results in its fragmentation. Here we report an exotic transfer channel involving a  ...[more]

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