Organometallic Chemistry of Carbon Dioxide

二氧化碳的有机金属化学

基本信息

批准号：
8817873
负责人：
Donald Darensbourg
金额：
$ 30.22万
依托单位：
Texas A&M Research Foundation
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1988
资助国家：
美国
起止时间：
1988-12-01 至 1991-11-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8817873&HistoricalAwards=false
关键词：
Organometallic Chemistry Carbon Dioxide

项目摘要

This award from the Inorganic, Bioinorganic and Organometallic Chemistry Program will support research in the general area of organometallic chemistry, with particular emphasis on reactions of carbon dioxide promoted by organometallic compounds. The practical interest in such reactions derives from the strong possibility that carbon dioxide will be used as a source of carbon for chemical synthesis in the future, in for example reactions with hydrogen derived from the decomposition of water by solar energy. The long-term goal of the project is a clear mechanistic view of carbon-hydrogen, carbon-carbon and carbon-oxygen bond forming processes resulting from the insertion of carbon dioxide into M-H, M-C and M-O bonds. Reactivity studies have revealed a similarity in reaction characteristics for carbon-hydrogen and carbon-carbon bond forming reactions involving anionic octahedral metal derivatives and neutral square-planar metal complexes. It has further been shown that knowledge gained from investigating these different processes occurring on individual metal centers is transferable to metal centers where both reaction types are possible. The insight gained from transition metal-carbon dioxide chemistry will be used in exploring potential uses of carbon dioxide as a feedstock for the synthesis of organic chemicals. Specific areas to be explored include decarboxylation mechanisms of metallo-formates and -carbonates, alkyl-, aryl- and silyl-oxide chemistry of low-valent metals, studies related to C-H activation and functionalization, and catalytic processes involving carbon dioxide.

该奖项获得了无机，生物无机和有机金属化学计划的奖项，将支持有机金属化学一般领域的研究，特别强调了有机金属化合物促进的二氧化碳的反应。对这种反应的实际兴趣来自于将来将二氧化碳用作化学合成的碳来源，例如与太阳能通过水的分解源自水的反应。该项目的长期目标是清晰的机理观点，是碳二氧化碳插入M-H，M-C和M-O键中导致的碳氧，碳碳和碳氧键的过程。反应性研究表明，碳氢和碳碳键形成反应的反应特征相似，涉及阴离子八面的金属衍生物和中性方形平面金属复合物。进一步表明，通过研究在单个金属中心上发生的这些不同过程而获得的知识可转移到两种反应类型的金属中心。从过渡金属二氧化碳化学中获得的见解将用于探索二氧化碳作为有机化学物质合成的原料的潜在用途。要探索的特定区域包括金属材料和碳酸盐，低价金属的烷基，芳基 - 氧化物化学的脱羧机制，与C-H激活和功能化有关的研究，以及涉及碳二氧化碳的催化过程。