Studies on Inorganic and Organometallic Chaloogenides

拟议的研究涉及化合物的形成 在金属和元素硫、硒和碲之间， 他们是历史上被称为 硫族元素该研究项目已经导致了 合成了大量有趣的新化合物。一些 的化合物与加氢脱硫有关 用于净化石油原料的催化剂， 这项研究有望带来更好的 了解这些催化剂的作用，并提供 设计更好的催化剂所需的知识。 本提案涉及以下物质的合成/反应性研究： 含有无机硫属元素配体的分子络合物， 即由1-6个S、Se或Te原子组成的配体。尽管 它们的简单性（实际上可能是因为它）这些配体 是多功能的反应中心这个项目被分解了 分为三个部分。第一个计划描述了新的 Ru、Rh、Nb、Ta和稀有金属无机硫族化物阴离子 土/锕系元素这里的方法是开发新的 使用成盐反应的化合物类别，典型的有 四羧酸双金属中羧酸根的置换 无机硫属阴离子化合物。下一节 涉及作为合成的金属硫化物 中间体和催化剂模型。特别强调 Cp* 2 Ru 2S 4反应的机理。延长 本工作包括Cp* 2Cr 2 O 4化学、团簇的构建 反应和电泳M=S官能团。闭幕 本节重点介绍噻吩的简单金属配合物 特别是当它们涉及金属硫化物反应性时。

The proposed research concerns the formation of compounds between metals and the elements sulfur, selenium and tellurium, which are members of a group historically known as the chalcogens. This research project has already resulted in the synthesis of a large number of interesting new compounds. Some of the compounds are related to the hydrodesulfurization catalysts which are used for cleaning up petroleum feedstocks, and the research is expected both to lead to a better understanding of the action of these catalysts and to provide knowledge necessary for the design of better catalysts. This proposal concerns synthetic/reactivity studies on molecular complexes containing inorganic chalcogen ligands, i.e. ligands consisting of 1-6 atoms of S, Se or Te. Despite their simplicity (indeed possibly because of it) these ligands are versatile reactivity centers. The project is broken down into three sections. First plans are described making new inorganic chalcogenide anions of Ru, Rh, Nb, Ta, and rare earth/actinide elements. The approach here is to develop new classes of compounds using salt-forming reactions, typified by displacement of carboxylates in tetracarboxylatedimetal compounds by inorganic chalcogen anions. The next section concerns cyclopentadienyl metal sulfides as synthetic intermediates and catalyst models. Particular emphasis is placed on the mechanisms of Cp*2Ru2S4 reactions. Extensions of this work include Cp*2Cr2O4 chemistry, cluster building reactions, and electrophylic M=S functionalities. The closing section focuses on simple metal complexes of thiophenes particularly as they relate to metal sulfide reactivity.