Presidential Young Investigator Award/Metal-Ligand Multiple Bonds and Atom Transfer Processes

Dr. L.来自爱荷华州州立大学的基思·吴被支持为 美国无机、生物无机协会（Inorganic，Bioinorganic） 有机化学课程。吴博士的项目是 与过渡化合物的不寻常反应有关 金属，如铁和钼，其中两个或甚至三个 电子同时转移。此类方法是 对它知之甚少，并提出了新的实验和理论 挑战这种反应的已知实例涉及金属 与铁结合有关的卟啉络合物 血红蛋白的中心 多电子氧化还原反应，以及伴随的氮 或氧原子转移，金属卟啉之间将是 研究了该项目的具体目标包括 划定氮和氧的范围和一般性 原子转移，决定了热力学和动力学 这些过程的参数作为分子的函数而变化 （结构，电子）变化，并阐明 这些过程与其他多电子 固氮和氧活化等过程。

Dr. L. Keith Woo of the Iowa State University is supported as a Presidential Young Investigator by the Inorganic, Bioinorganic and Organometallic Chemistry Program. Dr. Woo's project is concerned with unusual reactions of compounds of transition metals, such as iron and molybdenum, in which two or even three electrons are transferred simultaneously. Such processes are poorly understood and present new experimental and theoretical challenges. The known examples of such reactions involve metal complexes of porphyrins, which are related to the iron-binding center in hemoglobin. Multi-electron redox reactions, and the accompanying nitrogen or oxygen atom transfers, between metalloporphyrins will be investigated. The specific goals of the project include delineating the scope and generality of nitrogen and oxygen atom transfer, determining how thermodynamic and kinetic parameters of these processes vary as a function of molecular (structural, electronic) changes, and elucidating the relationship of these processes to other multi-electron processes such as nitrogen fixation and oxygen activation.