Sulfur and Ylide Coordination Compounds - Mono-, Bi- and Trimetallic Organometallic Reactions and Structures

金属铜、银、金、镍、钯的化合物 和铂是非常重要的催化剂， 由于固体具有所需的磁性或 电性能该研究项目的重点是 这是新化合物的合成和表征， 这些金属，有望产生新的催化剂， 有趣的新固体材料，如一维 导线.这项研究也可能提供一个更好的 了解酶中的金属硫簇， 金与生物组织结合的方式 过渡金属离子和配体成键对 配位化合物结构和反应性 描述了这项工作。 特别是，重点将放在 主要是镍和铜的过渡金属化合物 含有硫和叶立德配体的三元组元素。 重要的具体研究涉及M-M、C-S、S-S和M-S 键的形成和断裂，以及 产生过渡金属有机金属物质。 结构 使用X射线晶体学的研究是 这项工作这项建议特别令人感兴趣的是， 对联合国作用的新认识 第二金属中心在影响氧化添加中， 金属中心的还原消除反应化学 8、9或10个d电子。 添加小分子 M-M键之间的相互作用也有待探索。 新 含有线性Au的异三金属物质..不...... Au 由于其氧化作用， 性质和线性堆叠排列在固态。

Compounds of the metals copper, silver, gold, nickel, palladium and platinum are very important catalysts and are becoming increasingly important as solids with desirable magnetic or electrical properties. This research project, the focus of which is the synthesis and characterization of new compounds of these metals, is expected to result in new catalysts and interesting new solid materials, such as one-dimensional conductors. The research may also provide a better understanding of the metal-sulfur clusters in enzymes and of the way in which gold binds to biological tissues. The influence of transition metal ions and ligand bonding on the structure and reactivity of coordination compounds broadly describes this work. In particular, the focus will be on transition metal compounds primarily of the nickel and copper triad elements which contain sulfur and ylide ligands. Specific studies of importance relate to M-M, C-S, S-S and M-S bond formation and rupture, and the properties of the transition-metal organometallic species produced. Structural studies using X-ray crystallography form an important part of this work. Of special interest in this proposal is the development of new understanding concerning the role of a second metal center in influencing the oxidative-addition, reductive-elimination reaction chemistries at metal centers with 8, 9 or 10 d-electrons. The addition of small molecules across the M-M bond also is to be explored. The new heterotrimetallic species containing a linear Au.....Pt.....Au arrangement will receive special study due to its oxidation properties and linear stacked arrangement in the solid state.