Kinetics of Main-Group Electron-Transfer Reactions

主族电子转移反应的动力学

• 批准号: 9527966
• 负责人: David Stanbury
• 金额: $ 31.4万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-03-01 至 1999-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9527966&HistoricalAwards=false
• 关键词: Kinetics; Main; Group; Electron; Transfer

Dr. David M. Stanbury, Department of Chemistry, Auburn University, is supported by the Inorganic, Bioinorganic, and Organometallic Program of the Chemistry Division for research into main-group electron-transfer reactions. The kinetics and mechanisms of selected chemical reactions will be probed in a series of redox reactions of simple main-group molecules in aqueous solution. these reactions will be designed so that the rate limiting step is outer sphere electron-transfer. The systems include halogen, oxyhalide, nitric oxide, and ozone oxidation-reduction, and have been selected to contribute broadly to the understanding of the electron-transfer process. As several of these reactions appear to violate the prediction that there is a simple correlation between the reaction rates and the energy required to distort the molecules to a compromise geometry between the oxidized and reduced structures, Marcus Theory will be tested. Electron-transfer is one of the most basic reactions and is of importance in many areas of chemistry. This investigation will center on systems that are involved in chemical processes occurring in the environment and in biological systems. The details of how electrons are transferred to or from a molecule will be determined. This is of significance because several of these systems do not appear to follow predicted behavior or are ones that are unstudied. In order to understand the role of these compounds in the environment or biological systems, their fundamental behavior must be understood.

David M. Stanbury博士，奥本大学化学系，由化学系无机、生物无机和有机金属项目支持，研究主基团电子转移反应。通过一系列简单主基团分子在水溶液中的氧化还原反应，探讨了所选化学反应的动力学和机理。这些反应将被设计成速率限制步骤是外球电子转移。这些系统包括卤素、氧化卤化物、一氧化氮和臭氧氧化还原，并被选中广泛地有助于理解电子转移过程。由于这些反应中有几个似乎违反了预测，即在反应速率和扭曲分子到氧化和还原结构之间折衷几何结构所需的能量之间存在简单的相关性，因此马库斯理论将得到检验。电子转移是最基本的反应之一，在化学的许多领域都具有重要意义。这项调查将集中在系统，涉及发生在环境和生物系统中的化学过程。电子如何进入或从分子中转移的细节将被确定。这一点很重要，因为其中一些系统似乎没有遵循预测的行为，或者是未经研究的系统。为了了解这些化合物在环境或生物系统中的作用，必须了解它们的基本行为。