Highly Reduced Complexes of the Early Transition Metals and the Lanthanides

早期过渡金属和镧系元素的高度还原配合物

基本信息

批准号：
9910233
负责人：
John Ellis
金额：
$ 44.6万
依托单位：
University of Minnesota-Twin Cities
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1999
资助国家：
美国
起止时间：
1999-12-15 至 2004-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9910233&HistoricalAwards=false
关键词：
Highly Reduced Complexes Early Transition

项目摘要

Dr. John Ellis, Chemistry Department, University of Minnesota, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division for research into highly reduced complexes of the early transition metals and the lanthanides. The goal of the project is to develop reagents that function as storable sources of "naked" metal atoms or highly unsaturated organometallic groups. Prior results demonstrate that bis- and tris(polyarene) metal species can be conveniently produced by reactions of naphthalene and anthracene radical anions with early transition metal halides. These complexes are of special interest since they provide the first available "naked" metal anion reagents of the early transition metals. In this research the scope of early transition and lanthanide metal polyarene chemistry will be assessed. Special interest will be paid to the development of distinctly new isocyanide, nitrosyl, carbonyl, and dinitrogen metal chemistry. The project will contribute to the training of graduate students and postdoctoral associates in very demanding experimental chemistry.Transition metals and their compounds are often unique mediators or catalysts in many significant chemical reactions. This project will develop new strategies for the synthesis of compounds containing transition and lanthanide metals in unusual or unprecedented environments that resemble those that are present in effective mediators and catalysts. One specific objective will be compounds that can provide highly reactive metal atoms. These "naked" metal atom reagents will be examined as catalysts and reactants with industrially important feedstocks such as carbon monoxide, nitrogen, hydrogen, and a variety of related substances. New, novel transformations that may contribute to the improvement of industrial processes are anticipated.

明尼苏达大学化学系的约翰·埃利斯（John Ellis）博士得到了化学研究部的无机，生物无机和有机金属化学计划的支持，用于研究早期过渡金属和灯笼的高度降低复合物。该项目的目的是开发作为“裸”金属原子或高度不饱和有机金属基团的存储源的试剂。先前的结果表明，萘和蒽和蒽激阴离子与早期过渡金属卤化物的反应可以方便地产生双二和三（多美烯）金属物种。这些复合物具有特别的兴趣，因为它们提供了早期过渡金属的第一个可用的“裸”金属阴离子试剂。在这项研究中，将评估早期过渡和兰烷金属多幼烯化学的范围。特殊的兴趣将用于开发明显的新型异氰化物，亚硝基素，羰基和二氮金属化学。该项目将在非常苛刻的实验化学中培训研究生和博士后同伴。在许多重要的化学反应中，过渡金属及其化合物通常是独特的介体或催化剂。该项目将开发新的策略，以在异常或前所未有的环境中合成包含过渡和兰烷化金属的化合物，这些化合物与有效的介体和催化剂中存在的化合物合成。一个具体的目标将是可以提供高反应性金属原子的化合物。这些“裸”金属原子试剂将被检查为具有工业重要的原料，例如一氧化碳，氮，氢和多种相关物质，以催化剂和反应物进行检查。预计可能有助于改善工业过程的新的新型转型。