Experimental Studies of Gas-Phase Multiply-Charged Anions

气相多电荷阴离子的实验研究

• 批准号: 9508609
• 负责人: Robert Compton
• 金额: $ 24.21万
• 依托单位: University of Tennessee Knoxville
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-01 至 1999-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9508609&HistoricalAwards=false
• 关键词: Experimental; Studies; Gas; Phase; Multiply

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.

在这个项目中的物理化学程序的化学 司，教授。Robert C.康普顿和阿尔伯特Tuinman的部门 田纳西大学化学系将从事一系列 离子-分子化学领域的研究。 具体而言是 研究人员将研究双电荷负离子的性质， 多原子分子。 这项工作包括两个部分。 1)指导 理论预测，搜索将进行多电荷 负分子离子，和2）的能量依赖的横截面 第一个和第二个电子附着到这样的分子上， 第1部分将确定。 将特别注意 富勒烯分子C60和C60 F48。 双电荷负离子的研究领域一直受到 在过去的巨大困难，其结果是有一个 很多争议。 几乎所有关于双重收费的报告 已经发现负分子离子是基于虚假数据， 实验文物 目前的工作被认为大有希望 在这一领域取得突破。 这项研究很重要 这不仅是因为它在当前人们强烈关注的领域中的内在价值， 但它也有希望与技术应用有关， 与电喷雾过程一样。