论文标题
液相电子散射中的结构检索
Structure retrieval in liquid-phase electron scattering
论文作者
论文摘要
最近，通过开发超薄液体板技术，已经启用了液体样品上的电子散射。液相电子散射的数据处理主要依赖于用于气体电子衍射开发的方法，其中通常需要理论输入和经验配件来考虑原子形态并去除非弹性散射背景。这些理论和经验输入的准确性和影响尚未用于液相电子散射数据。在这项工作中，我们提出了一种替代数据处理方法，该方法既不需要理论输入也不需要经验配件。这种新方法的优点是通过从液态水，四氯化碳，氯仿和二氯甲烷的实验电子散射模式中检索真正的空间分子结构来说明的。
Electron scattering on liquid samples has been enabled recently by the development of ultrathin liquid sheet technologies. The data treatment of liquid-phase electron scattering has been mostly reliant on methodologies developed for gas electron diffraction, in which theoretical inputs and empirical fittings are often needed to account for the atomic form factor and remove the inelastic scattering background. The accuracy and impact of these theoretical and empirical inputs has not been benchmarked for liquid-phase electron scattering data. In this work, we present an alternative data treatment method that requires neither theoretical inputs nor empirical fittings. The merits of this new method are illustrated through the retrieval of real-space molecular structure from experimental electron scattering patterns of liquid water, carbon tetrachloride, chloroform, and dichloromethane.
