Photochemical and Photophysical Processes Involving Fullerenes

我们将考察C60和C70通过环烯酮在富勒烯骨架上的(2，2)光环化作用来功能化。该方法的通用性和化学选择性将通过选择使用不同的烯类以及比较C60和C70富勒烯的产物分布来开发。机理细节将被阐明，特别注意理解为什么高能的烯酮三重态更倾向于与富勒烯骨架发生化学反应，而不是能量转移到较低能量的富勒烯三重态。通过这种光合作用方法，金属卟啉将被连接到富勒烯上，并研究了连接片段之间的光诱导电子转移。研究生和本科生将参与研究的所有方面，包括在科学会议上的陈述。通过这个奖项，有机和高分子化学项目支持纽约大学化学系教授舒斯特和威尔逊的研究和教育活动。舒斯特和威尔逊教授将把他们的研究重点放在推广C60和C70富勒烯功能化的光化学方法上。光物理实验将被用来阐明加成的机理，以及影响与富勒烯骨架的化学反应速率相对于能量转移速率的因素。舒斯特和威尔逊教授让研究生和本科生参与到研究的各个方面，使研究及其演示成为教育工具。

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.