The Mechanism of Formation and the Chemical Reactivity of C60

C60的形成机理及化学反应性

• 批准号: 9101252
• 负责人: Philip Shevlin
• 金额: $ 4.95万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-15 至 1992-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9101252&HistoricalAwards=false
• 关键词: Mechanism; Formation; Chemical; Reactivity; C60

This grant from the Organic Dynamics Program supports the research of Professor Shevlin under the Small Grants for Exploratory Research (SGER) Program. The results of this research will give new understanding to the mechanism of formation of the recently discovered C60 allotrope of carbon, which possesses a geodesic (Buckminster Fuller) structure. In addition, reaction of C60 will be studied. There is intense interest in the formation, reactions, and properties of this allotrope of carbon (graphite and diamond are examples of other allotropes of carbon). It is thought that atomic carbon forms small reactive fragments, which then undergo further reactions to eventually produce C60. This hypothesis will be tested in experiments designed to trap the smaller fragment precursors to C60. Abstractable hydrogen will be added to the helium bath gas as the trapping reagent, with the expectation that the size of carbon clusters which are trapped will be directly proportional to bath gas pressure and inversely proportional to the amount of trapping reagent. In addition, the reactions of some reactive intermediates (carbenes and benzyne) with C60 will be studied. Reaction of chromium hexacarbonyl with C60 will also be explored.

有机动力学计划的这笔赠款支持谢夫林教授在探索性研究小额赠款（SGER）计划下的研究。这项研究的结果将为最近发现的碳C60同素异形体的形成机制提供新的认识，该同素异形体具有测地线（巴克明斯特富勒）结构。此外，还将研究C60的反应。人们对这种碳同素异形体的形成、反应和性质非常感兴趣（石墨和金刚石是碳的其他同素异形体的例子）。 据认为，原子碳形成小的反应碎片，然后进行进一步的反应，最终产生 C60。 这一假设将在旨在捕获 C60 较小碎片前体的实验中得到检验。将可提取的氢气作为捕获剂添加到氦浴气体中，期望捕获的碳簇的尺寸将与浴气体压力成正比并且与捕获剂的量成反比。此外，还将研究一些反应中间体（卡宾和苯炔）与C60的反应。六羰基铬与C60的反应也将被探索。