Pei Linsen, Farrar James M
Department of Chemistry, University of Rochester, Rochester, NY, United States.
Front Chem. 2019 Apr 12;7:227. doi: 10.3389/fchem.2019.00227. eCollection 2019.
We present a velocity map imaging study of the key ion-molecule reactions occurring in the O(S) + CH ( A) system at collision energies of 1.84 and 2.14 eV. In addition to charge transfer to form CH ( B), we also present data on formation of CH ( A'), for which the experimentally determined images provide clear confirmation that the products arise from dissociative charge transfer rather than hydride transfer. Experimental data are also presented on the formation of HCO through a transient [OCH] complex living many rotational periods. Plausible reaction pathways and intermediate structures are presented to give insight into the routes for formation of these reaction products.
我们展示了一项速度映射成像研究，该研究针对在1.84和2.14电子伏特碰撞能量下，O(S) + CH ( A) 系统中发生的关键离子 - 分子反应。除了电荷转移形成CH ( B) 外，我们还展示了关于CH ( A') 形成的数据，其实验测定图像清楚地证实了产物源于离解电荷转移而非氢化物转移。还展示了通过一个存活多个转动周期的瞬态 [OCH] 络合物形成HCO的实验数据。文中给出了合理的反应途径和中间结构，以深入了解这些反应产物的形成途径。
