Experimental Studies of Gas-Phase Multiply-Charged Anions

在这个项目中，化学系物理化学项目，教授。田纳西大学化学系的罗伯特·C·康普顿和阿尔伯特·图因曼将在离子分子化学领域进行一系列研究。具体地说，研究人员将研究多原子分子中双电荷负离子的性质。这项工作由两部分组成。1)在理论预测的指导下，将对多电荷负分子离子进行搜索，以及2)将确定第一电子和第二电子与第一和第二电子与第一部分中发现的分子的结合截面。将特别关注富勒烯分子C60和C60F48。双电荷负离子的研究在过去一直困难重重，引起了许多争议。几乎所有以前关于双电荷负分子离子的报告都被发现是基于虚假的数据和实验人工制品。目前的工作被认为在这一领域取得突破方面大有可为。这项研究不仅重要，因为它在一个具有强烈电流兴趣的领域具有内在价值，而且它也有望与诸如电喷雾过程等技术应用相关。

In this project in the Physical Chemistry program of the Chemistry Division, Profs. Robert C. Compton and Albert Tuinman of the Department of Chemistry of the University of Tennessee will engage in a series of investigations in the area of ion-molecule chemistry. Specifically, the investigators will study the properties of doubly charged negative ions of polyatomic molecules. The work consists of two parts. 1) Guided by theoretical predictions, a search will be undertaken for multiply charged negative molecular ions, and 2) the energy dependent cross sections of the first and second electron attachments to such molecules as are found in part 1) will be determined. Special attention will be given to the fullerene molecules C60 and C60F48. The area of study of doubly charged negative ions has been beset with great difficulties in the past, in consequence of which there has been a lot of controversy. Nearly all previous reports on doubly charged negative molecular ions have been found to be based on spurious data and experimental artifacts. The present work is judged to have great promise in achieving a breakthrough in this field. This research is important not only for its intrinsic value in an area of strong current interest, but it also holds promise to be relevant to technical applications such as the electrospray process.