Chemistry of Transition Metal-Oxygen Adducts

在这个项目中，爱荷华州立大学的J.H.Espenson和A.Bakac将继续他们对过渡金属部分与氧结合的反应性的研究。氧的活化及其反应活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都具有实际意义。钴(II)和铬(II)与辅助性配体“cyam”(具有四个氮给体原子的大环化合物)的络合物将用于利用激光闪光光解吸收二氧化氧的动力学研究。通过电子转移和氧原子转移，研究了这些络合物的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络合物的反应动力学。

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.