Organometallic Chemistry of Carbon Dioxide

该奖项由无机，生物无机和有机化学 化学计划将支持在一般领域的研究， 有机金属化学，特别强调反应 有机金属化合物促进的二氧化碳。的 对这种反应的实际兴趣来自于 二氧化碳可能被用作 碳在未来的化学合成，例如， 与水分解产生的氢反应 通过太阳能。 该项目的长期目标是明确的机械论观点 碳-氢，碳-碳和碳-氧键 由于插入碳而产生的成形过程 二氧化物转化为M-H、M-C和M-O键。反应性研究 揭示了反应特征的相似性， 碳氢和碳碳键形成反应 涉及阴离子八面体金属衍生物和中性 正方形平面金属配合物。进一步表明， 从研究这些不同的过程中获得的知识 发生在单个金属中心的是转移到金属 两种反应类型都有可能的中心。的洞察 从过渡金属-二氧化碳化学中获得的 用于探索二氧化碳作为一种 用于合成有机化学品的原料。具体 有待探索的领域包括： 金属甲酸盐和碳酸盐，烷基氧化物，芳基氧化物和甲硅烷基氧化物 低价金属化学，与C-H相关的研究 活化和功能化，以及催化过程 涉及二氧化碳。

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.