Photochemical Studies of Fullerene-Based Multicomponent Molecular Assemblies

有了这个更新的建议，有机和高分子化学计划继续支持博士的工作。德文斯J。古斯特，安娜L。摩尔和托马斯A.位于亚利桑那州滕佩的亚利桑那州立大学化学系的摩尔说。 最初的研究将涉及类胡萝卜素/卟啉/富勒烯（C-P-C60）三元组，其中光激发导致长寿命的C.+- P-C60电荷分离态 这些将导致连接到富勒烯电子受体的大型合成卟啉阵列。 连接螺吡喃预计将导致光激活开关。 最后，将开发一种基于细胞囊泡的系统，用于将光能转换为化学势。这项工作的目的是合成和研究下一代分子光化学能量转换装置，模仿自然光合作用的要素：电子激发，电荷分离，跨膜质子梯度和化学产品中的能量储存。 除了已发展出的基本认识之外，还有开发实用光电器件的真实的潜力，包括由光激活的开关，以及比绿色植物更有效地将太阳能转换成储存的化学能的电池。 该项目需要许多技能和技术（有机化学，光谱学，生物化学和量子化学）的结合，并应为参与的学生提供良好的培训。

With this renewal proposal the Organic and Macromolecular Chemistry Program continues its support for the work of Drs. Devens J. Gust, Anna L. Moore, and Thomas A. Moore of the Department of Chemistry at Arizona State University in Tempe, Arizona. Initial studies will involve carotenoid/porphyrin/fullerene (C-P-C60) triads, with photoexcitation leading to long lived C.+-P-C60.- charge separated states. These will lead to large synthetic porphyrin arrays linked to fullerene electron acceptors. Linking spiropyrans is expected to lead to light-activated switches. Finally, a cell-like vesicle-based system for conversion of light energy to chemical potential will be developed.The work is aimed at the synthesis and investigation of the next generation of molecular photochemical energy conversion apparatus, mimicing the elements of natural photosynthesis: electronic excitation, charge separation, a transmembrane proton gradient, and energy storage in chemical products. In addition to the fundamental understanding developed, there is a real potential for the development of practical photoelectronic devices, including switches activated by light, and cells which convert solar energy into stored chemical energy more efficiently than green plants. The project requires a combination of many skills and techniques (organic chemistry, spectroscopy, biochemistry, and quantum chemistry) and should provide excellent training for the students involved.