Orchestrating Photochemistry, Energy Transfer and Electron Transfer in Multichromophoric Molecular Systems

协调多发色分子系统中的光化学、能量转移和电子转移

• 批准号: 0352599
• 负责人: J. Devens Gust
• 金额: $ 71.02万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-02-01 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0352599&HistoricalAwards=false
• 关键词: Orchestrating; Photochemistry; Energy; Transfer; Electron

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. The research is aimed at the synthesis and investigation of molecular photochemical energy conversion devices, which mimic the elements of natural photosynthetic systems including photochemical excitation, charge separation, and energy storage. These goals will be accomplished through the synthesis of "Supermolecules" based on porphyrins, fullerenes, and carotenoid polyenes. These supramolecular species undergo photochemically induced electron transfer to produce long-lived energetic species. The molecules will be coupled to photochromic species that are isomerized by light into colored and colorless forms in order to create light activated molecular switches. This research by Professors Gust and coworkers has the potential of aiding the development of practical photoelectronic devices that are able to convert solar energy into stored chemical energy with an efficiency that rivals that of green plants. With support from the Organic and Macromolecular Chemistry Program, Professor Gust and coworkers will carry out collaborations with coworkers at the undergraduate, graduate and postdoctoral levels. The project, which requires a combination of many skills and techniques including organic chemistry, spectroscopy, biochemistry, and quantum chemistry, will provide important interdisciplinary research training for the students involved. Although fundamental in nature, the research is expected to provide a basis for advances in solar energy utilization, molecule-based sensing, and data processing, storage and transmission, and for a better understanding of biological electron and energy transfer processes.

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。 该研究旨在合成和研究分子光化学能量转换装置，该装置模仿自然光合系统的元素，包括光化学激发，电荷分离和能量储存。 这些目标将通过基于卟啉、富勒烯和类胡萝卜素多烯的“超分子”的合成来实现。 这些超分子物种进行光化学诱导的电子转移，产生长寿命的高能物种。 这些分子将与光致变色物质偶联，光致变色物质通过光异构化成有色和无色形式，以产生光激活的分子开关。 Gust教授及其同事的这项研究有可能帮助开发实用的光电设备，这些设备能够将太阳能转换为储存的化学能，其效率可与绿色植物相媲美。在有机和高分子化学计划的支持下，Gust教授和同事将与本科生，研究生和博士后水平的同事进行合作。 该项目需要结合许多技能和技术，包括有机化学，光谱学，生物化学和量子化学，将为参与的学生提供重要的跨学科研究培训。 虽然本质上是基础性的，但预计这项研究将为太阳能利用、基于分子的传感、数据处理、存储和传输以及更好地理解生物电子和能量转移过程提供基础。