Chemistry of Transition Metal-Oxygen Adducts

过渡金属氧加合物的化学

• 批准号: 9007283
• 负责人: James Espenson
• 金额: $ 26.11万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9007283&HistoricalAwards=false
• 关键词: Chemistry; Transition; Metal; Oxygen; Adducts

In this project within the Inorganic, Bioinorganic and Organo- metallic Chemistry Program, J.H. Espenson and A. Bakac of Iowa State University will continue their investigations of the reactivity of transition metal moieties bonded to oxygen. The study of the activation of dioxygen and its reactivity has practical relevance in many areas such as the transport and storage of oxygen in biological systems as well as the catalytic oxidations in organic synthesis. Complexes of cobalt(II) and chromium(II) with the ancillary ligand "cyclam" (a macrocyclic compound with four nitrogen donor atoms) will be employed in kinetic studies, using laser flash photolysis, of the uptake of dioxygen. The kinetics of the reactivity, via both electron transfer and oxygen atom transfer, of the dioxygen derivatives of these complexes will be investigated. In addition the reaction kinetics of peroxo complexes of cobalt(II), chromium(II) and several other metals will be examined.

在这个无机、生物无机和有机金属化学项目中，爱荷华州立大学的J.H. Espenson和A. Bakac将继续研究与氧结合的过渡金属基团的反应性。双氧的活化及其反应性的研究在生物系统中氧的运输和储存以及有机合成中的催化氧化等许多领域具有实际意义。钴（II）和铬（II）的配合物与辅助配体“环环”（一种具有四个氮供体原子的大环化合物）将用于激光闪光光解的动力学研究，以吸收二氧。通过电子转移和氧原子转移，研究了这些配合物的二氧衍生物的反应动力学。此外，还将研究钴（II）、铬（II）和其他几种金属的过氧配合物的反应动力学。