Organometallic Chemistry of Group 6 Imido Diamide Complexes

詹姆斯·邦塞拉(佛罗里达大学)因研究早期过渡金属亚胺/氨基化合物而获得无机化学、生物无机化学和金属有机化学项目的支持。配位球中几个pi给体的存在以及M(IV)和M(VI)之间的两个电子的变化，其中M=Mo或W，为不寻常的反应提供了机会。(N，N-bis(trimethylsilyl)-o-phenylenediamide)M(=NPh)(arene))等络合物具有聚合和加氢活性。芳亚胺和-氨基配体将被修饰，以确定对成键和反应活性的影响，特别是氧化加成。这些络合物还将用于模拟使用含硫底物(如噻吩类)的加氢脱硫和使用含氧芳烃的加氢脱氧化学。这项基础性研究将探索金属络合物中细微变化的影响。对这些有机金属物种的研究可能会使人们对烯烃聚合、加氢、加氢脱硫和加氢脱氧等工业过程有新的理解。

James Boncella (University of Florida) is supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program for his work with early transition metal imido/amido compounds. The presence of several pi donors in the coordination sphere and the two electron change between M(IV) and M(VI), where M= Mo or W, provide an opportunity for unusual reactivity. Complexes such as (N,N-bis(trimethylsilyl)-o-phenylenediamide)M(=NPh)(arene) show olefin polymerization and hydrogenation activity. The arylimido and -amido ligands will be modified to determine the effects on bonding and reactivity, particularly oxidative addition. The complexes will also be used to model hydrodesulfurization using sulfur-containing substrates such as thiophene and hydrodeoxygenation chemistry using oxygenated aromatics. This fundamental study will explore the effects of subtle changes in a metal complex. Study of these organometallic species may lead to a new understanding of industrial processes such as olefin polymerization, hydrogenation, hydrodesulfurization and hydrodeoxygenation.