Synthesis, Photophysics, and Chemistry of Novel Fullerene Derivatives

有了这个更新奖的有机和高分子化学计划支持博士大卫我的工作。Schuster和Stephen R.威尔逊在纽约市的纽约大学化学系。 部分工作的目的是在合成和超分子配合物与各种轮烷和索烃，其中非共价键连接的金属卟啉配合物和C60富勒烯举行不寻常的空间关系的物理研究。 它是基于早期的工作与卟啉富勒烯二联体连接的柔性聚醚或刚性类固醇连接。 其他研究包括C70与环烯酮的[2+2]光环加成反应，以及具有高氟化分子尾的富勒烯衍生物的合成、光化学和自组装，其中大部分工作涉及同时含有电子给体的分子的合成和研究。（金属（通常是锌）卟啉络合物），其可以容易地利用光进入电子激发态，和电子受体（60或70个碳原子的球），在供体被激发后，电子可以转移到该电子受体。 这一过程模拟了绿色植物光合作用的第一步，即利用镁卟啉复合物吸收光，然后进行电子转移。 待研究的新型分子将揭示电子激发和转移过程的细节，并最终导致新型光学和电子材料。 由于这项工作涉及合成，表征，光化学，光物理学和计算设计，预计将为参与的学生提供良好的培训。

With this renewal award the Organic and Macromolecular Chemistry Program supports the work of Dr. David I. Schuster and Stephen R. Wilson in the Department of Chemistry of New York University in New York City. Part of the work is aimed at the synthesis and photophysical investigation of supramolecular complexes with a variety of rotaxanes and catenanes in which non-covalently linked metal porphyrin complexes and C60 fullerenes are held in unusual spatial relationships. It is based on earlier work with porphyrin-fullerene dyads connected by flexible polyether or rigid steroid linkers. Other studies will involve [2+2] photocycloaddition of cyclic enones to C70, and the synthesis, photochemistry and self-assembly of fullerene derivatives with highly fluorinated molecular tails.Most of the work involves the synthesis and study of molecules which contain both an electron donor (a metal (usually zinc) porphyrin complex), which can be readily put into an electronically excited state using light, and an electron acceptor (a ball of 60 or 70 carbon atoms), to which an electron can be transferred after the donor has been excited. The process mimics the first step of photosynthesis in green plants, which use a magnesium porphyrin complex to absorb light, followed by electron transfer. The novel molecules to be studied will shed light on the details of the electron excitation and transfer process, and could eventually lead to novel optical and electronic materials. Because the work involves synthesis, characterization, photochemistry, photophysics, and computational design, it is expected to provide excellent training for the students involved.