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

Panelli, Guglielmo, Moradmand, Ali, Griffin, Brandon, Swanson, Kyle, Weber, Thorsten, Rescigno, Thomas N., McCurdy, C. William, Slaughter, Daniel S., Williams, Joshua B.

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.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源