Generation and Chemistry of Biradicals and High Energy Molecules

双自由基和高能分子的生成和化学

• 批准号: 9215177
• 负责人: Robert Sheridan
• 金额: $ 29.3万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-01 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215177&HistoricalAwards=false
• 关键词: Generation; Chemistry; Biradicals; Energy; Molecules

This grant from the Organic Dynamics Program supports the research program directed by Professor Robert S. Sheridan at the University of Nevada Reno. Photochemical generation of biradicals in matrices and in solution will be examined. The mechanism of decomposition of the azo precursors to meta-photoaddition biradicals will be studied in order to determine the structural features which dictate stepwise versus concerted partitioning on the reaction surface. Experiments designed to determine if hot molecule reactions are important in matrices and in solution will be conducted. Photochemical pathways to didehydroaromatic biradicals will also be explored. %%% The interaction of light with highly energetic molecules trapped at low temperature in solid matrices will be examined. The low temperature matrix will prolong the lifetime of reactive species formed in these photochemical reactions by effectively isolating these reactive intermediates from each other. The effect of adding more energy than necessary to form these reactive intermediates will be carefully examined. These studies will provide important information on the decomposition pathways of highly energetic molecules and intermediates.

有机动力学计划的这笔赠款支持 由罗伯特·S教授领导的研究项目。谢里丹在 内华达州里诺大学。 光化学生成 将检查矩阵和溶液中的双自由基。 的 偶氮前体的分解机理， 将研究间位光加成双自由基， 确定决定逐步与 在反应表面上协同分配。 实验 旨在确定热分子反应是否重要 将在基质和溶液中进行。 光化学 还将探索二脱氢芳族双自由基的途径。 %%% 光与高能分子的相互作用 将检查在低温下在固体基质中捕获的。 低温基体将延长 在这些光化学反应中形成的活性物质， 有效地将这些反应性中间体从每一个 其他. 增加能量超过形成所需的效果 将仔细检查这些活性中间体。 这些 研究将提供关于分解的重要信息 高能分子和中间体的路径。