INTRAMOLECULAR ELECTRON TRANSFER IN PORPHYRIN DIMERS, TIMERS AND PENTAMERS

卟啉二聚体、定时器和五聚体中的分子内电子转移

• 批准号: 7598444
• 负责人: MICHAEL J THERIEN
• 金额: $ 0.4万
• 依托单位: UNIVERSITY OF PENNSYLVANIA
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2008-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7598444
• 关键词: Computer Retrieval of Information on Scientific Projects Database; Coupling; Electron Transport; Electronics; Funding; Grant; Institution; Link; Metals; Nature; Play; Porphyrins; Process; Rate; Reaction; Research; Research Personnel; Resources; Role; Series; Source; System; United States National Institutes of Health; dimer; driving force; electron donor

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. The nature of the electronic coupling between donors and acceptors in electron transfer processes is an important consideration in determining the rates and therefore the yields of such reactions. It is likely that the physical coupling between donors and acceptors also plays a pertinent role in the electronic coupling in such systems. In order to investigate the effect of the physical coupling on the electronic coupling, hence the electron transfer rate constants, we are studying compounds in which the driving force for electron transfer reaction remains essentially constant but the physical coupling between electron transfer partners differs. Specifically, we have synthesized a series of metallo-porphyrin systems which consist of an electron donor and acceptor pair linked by a series of phenyl-ring spacers which are either covalently linked to the porphyrin ring or coordinated axially to the metal contained in the porphyrin ring.

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目及 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 电子转移过程中供体和受体之间电子耦合的性质是确定此类反应的速率和产率的重要考虑因素。 供体和受体之间的物理耦合很可能也在此类系统中的电子耦合中发挥相关作用。 为了研究物理耦合对电子耦合以及电子转移速率常数的影响，我们正在研究电子转移反应的驱动力基本保持恒定但电子转移伙伴之间的物理耦合不同的化合物。 具体来说，我们合成了一系列金属卟啉系统，该系统由通过一系列苯环间隔基连接的电子供体和受体对组成，这些苯环间隔基要么与卟啉环共价连接，要么与卟啉环中包含的金属轴向配位。