Reactivity and Catalytic Properties of Sulfidobimetallic Clusters

这个无机、生物无机和有机金属项目的奖项为密歇根大学化学系的M. David Curtis博士关于脱氢硫化（HDS）催化剂模型配合物反应性的研究提供了支持。柯蒂斯将合成由两到三个钼原子、一到三个第二金属原子（如铁、钴或镍）和两到四个硫原子组成的小簇分子。它们的结构特征将被检查并与它们在氧化还原反应中的行为进行比较。特别令人感兴趣的是从有机分子，特别是烯丙基硫化物中提取硫的反应。另一个感兴趣的反应涉及烯烃和氢，因为已知氢参与了脱硫过程。电化学研究，通过脱硫合成有机分子，以及支持在氧化铝团簇的表面表征也将包括在内。加氢脱硫（HDS）是一种由钼、钴和硫制备的催化剂促进的工业过程。它用于从有机材料中去除硫，因此对提高工业地区的空气质量很重要。在这个项目中，将制备工业催化剂模型的化合物，以努力了解发生的反应，并可能提高催化剂的有效性。

This award in the Inorganic, Bioinorganic, and Organometallic Program provides support for research by Dr. M. David Curtis of the Chemistry Department, University of Michigan, on the reactivity of model complexes for dehydrosulfurization (HDS) catalysts. Curtis will synthesize small cluster molecules consisting of two or three atoms of molybdenum, one to three atoms of a second metal, such as iron, cobalt, or nickel, and two to four atoms of sulfur. Their structural features will be examined and compared to their behavior in oxidation-reduction reactions. Of particular interest are reactions involving abstraction of sulfur from organic molecules, particularly allyl sulfides. Another reaction of interest involves olefins and hydrogen, since hydrogen is known to be involved in the desulfurization sequence. Electrochemical studies, synthesis of organic molecules by desulfurization, and surface characterization of clusters when supported on alumina will also be included. %%% Hydrodesulfurization (HDS) is an commercial process that is promoted by catalysts prepared from molybdenum, cobalt, and sulfur. It is used to remove sulfur from organic materials and is therefore important to enhancing air quality in industrial areas. In this project, compounds which are models of the industrial catalyst will be prepared in an effort to understand the reactions which occur and perhaps improve the effectivess of the catalyst.