论文标题
研究谐振低能电子对甲酰胺的附着:模型肽键解离和其他破碎通道的动力学
Investigating resonant low-energy electron attachment to formamide: dynamics of model peptide bond dissociation and other fragmentation channels
论文作者
论文摘要
我们报告了通过解离电子附着在formamide上产生的阴离子的三维动量成像测量结果的实验结果。从动量图像中,我们分析了NH $ _2^{ - } $,O $^{ - } $的角度和动能分布,以及H $^{ - } $片段,并讨论了两个事件电能的两种范围,从5.3〜EV到6.8〜EV,并讨论了多个事件电能的多个范围的电子连接和分离机制,并讨论了两个范围。 {\it Ab initio} theoretical results for the angular distributions of the NH$_2^{-}$ anion for $\sim$6~eV incident electrons, when compared with the experimental results, strongly suggest that one of the two resonances producing this fragment is a $^2$A$''$ Feshbach resonance.
We report experimental results on three-dimensional momentum imaging measurements of anions generated via dissociative electron attachment to gaseous formamide. From the momentum images, we analyze the angular and kinetic energy distributions for NH$_2^{-}$, O$^{-}$, and H$^{-}$ fragments and discuss the possible electron attachment and dissociation mechanisms for multiple resonances for two ranges of incident electron energies, from 5.3~eV to 6.8~eV, and from 10.0~eV to 11.5~eV. {\it Ab initio} theoretical results for the angular distributions of the NH$_2^{-}$ anion for $\sim$6~eV incident electrons, when compared with the experimental results, strongly suggest that one of the two resonances producing this fragment is a $^2$A$''$ Feshbach resonance.