Photochemical and Photophysical Processes Involving Fullerenes

涉及富勒烯的光化学和光物理过程

• 批准号: 9712735
• 负责人: David Schuster
• 金额: $ 35.9万
• 依托单位: New York University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-12-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9712735&HistoricalAwards=false
• 关键词: Photochemical; Photophysical; Processes; Involving; Fullerenes

The functonalization of C60 and C70 by means of a (2+2) photocyclization of cyclic enones onto the fullerene skeleton will be examined. The generality and chemoselectivity of the methodology will be developed through a selective use of different enones, and comparisons of the product distributions obtained with C60 and C70 fullerenes. Mechanistic details will be elucidated with particular attention paid to understanding why the high energy enone triplets prefer to undergo the chemical reaction with the fullerene skeleton, rather than energy transfer to a lower energy fullerene triplet state. Metalloporphyrins tethered to the fullerenes will be achieved by means of this photosynthetic methodology, and the photoinduced electron transfer between the tethered fragments examined. Graduate and undergraduate students will be involved in all aspects of the research including its presentation at scientific meetings. With this award, the Organic and Macromolecular Chemistry Program supports the research and educational activities of Professors Schuster and Wilson of the Department of Chemistry at New York University. Professors Schuster and Wilson will focus their research efforts on generalizing a photochemical methodology for functionalizing C60 and C70 fullerenes. Photophysical experiments will be undertaken to elucidate the mechanism of addition and the factors affecting the rate of chemical reaction with the fullerene skeleton relative to the rate of energy transfer. Professors Schuster and Wilson involve both graduate and undergraduate in all aspects of the work making the research and its presentation educational vehicles.

C_（60）和C_（70）的（2+2）光环化反应 环烯酮的富勒烯骨架将被检查。 的 将开发方法的通用性和化学选择性 通过选择性使用不同的烯酮，并比较 用C60和C70富勒烯获得的产物分布。 机械论 将特别注意阐明细节 理解为什么高能烯酮三胞胎更喜欢经历 与富勒烯骨架的化学反应，而不是能量 转移到较低能量的富勒烯三重态。 金属卟 将通过这种方式实现与富勒烯的连接 光合方法学和光诱导电子转移 被拴在一起的碎片 研究生和本科 学生将参与研究的各个方面，包括其 在科学会议上发言。 有了这个奖项，有机和高分子化学计划 支持舒斯特教授的研究和教育活动 和纽约大学化学系的威尔逊。 舒斯特教授和威尔逊教授将把他们的研究工作集中在 用于官能化C60和C70的光化学方法的推广 富勒烯 将进行光物理实验来阐明 添加机理及影响化学添加速率的因素 与富勒烯骨架的反应相对于能量速率 转移 舒斯特教授和威尔逊教授既涉及研究生， 本科生在各方面的工作，使研究和它的 介绍教育车辆。