Organometallic Chemistry of Open-Shell Systems

有了这个奖项，无机，生物无机和有机物计划 支持里纳尔多博士对奇电子有机金属化合物的研究 马里兰州大学帕克分校化学系的波利说。 波利博士将制备新的钼的有机金属化合物， 铬、钒和钨，含有15或17个电子， 用EPR和其他方法研究它们的反应性。 配对 能量和轨道分裂的稳定，这些“开放” 壳'在有机金属系统将被确定，从而增加 了解催化循环中的活性中间体。 大多数稳定的有机金属化合物含有18个价电子，或 在某些情况下16，并且不表现出各种各样的氧化态。 通过研究具有奇数电子的物种， 容纳更广泛的配体，信息的作用，自旋 将获得反应动力学中的配对。 此信息将 在设计反应性物种中有价值， 有机合成催化剂。

With this award, the Inorganic, Bioinorganic, and Organometallic Program supports research on odd-electron organometallic compounds by Dr. Rinaldo Poli of the Chemistry Department, University of Maryland at College Park. Dr. Poli will prepare new organometallic compounds of molybdenum, chromium, vanadium, and tungsten which contain 15 or 17 electrons and investigate their reactivity using EPR and other methods. Pairing energies and orbital splittings for the stabilization of these `open shells` in organometallic systems will be determined, thus increasing understanding of reactive intermediates in catalytic cycles. Most stable organometallic compounds contain 18 valence electrons, or in some instances 16, and do not exhibit a wide variety of oxidation states. By investigating species which have an odd number of electrons and accommodate a wider variety of ligands, information on the role of spin pairing in reaction kinetics will be obtained. This information will be valuable in the design of reactive species which may serve as new catalytic agents for organic synthesis.