论文标题
通过分离电子附件在甲酸中的选择性键断裂
Selective Bond-Breaking in Formic Acid by Dissociative Electron Attachment
论文作者
论文摘要
我们报告了6-9 eV区域中分离性电子附着在甲酸（HCOOH）上的联合实验{和}的结果，其中H $^ - $片段是主要产物。 CH和OH键的破坏是通过两个位点的申请通过实验区分的。我们表明，在该区域中，可以通过形成两个{或可能三个} feshbach共振（双兴趣的阴离子）状态来产生H $^ - $离子，其中一种可以导致C-H或O-H键尺寸，而另一个只能通过O-H键损耗产生Formylo-lodicals。对阴离子片段的实验和理论角度分布的比较，可以阐明状态特定途径以解离。
We report the results of a joint experimental {and} theoretical study of dissociative electron attachment to formic acid (HCOOH) in the 6-9 eV region, where H$^-$ fragment ions are a dominant product. Breaking of the CH and OH bonds is distinguished experimentally by deuteration of either site. We show that in this region H$^-$ ions can be produced by formation of two {or possibly three} Feshbach resonance (doubly-excited anion) states, one of which leads to either C-H or O-H bond scission, while the other can only produce formyloxyl radicals by O-H bond scission. Comparison of experimental and theoretical angular distributions of the anion fragment allows the elucidation of state specific pathways to dissociation.
