A Study of the Synthesis, Properties and Reaction Chemistry of Transition Metal Silylene Complexes

过渡金属硅烯配合物的合成、性能及反应化学研究

• 批准号: 8706356
• 负责人: Terry Tilley
• 金额: $ 19.56万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-07-01 至 1990-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706356&HistoricalAwards=false
• 关键词: Study; Synthesis; Properties; Reaction; Chemistry

Silylene metal complexes, which are compounds in which a metal atom is attached by two pairs of electrons to a silicon atom, were not known prior to their recent synthesis in the Principal Investigator's laboratory. Since such complexes are believed to be involved as intermediates in a number of important metal-catalyzed reactions of silicon compounds, the results of this project are expected to provide a better understanding of these catalytic reactions, and also to lead to new reaction pathways to silicon-containing materials. For example, one goal of the project is to use metal silylene complexes to develop new routes to polysilanes, polymers which are expected to have useful properties as structural or electronic materials. This research is directed toward the synthesis and study of silylene complexes of late, or low valent transition metals. General synthetic procedures will be developed for the synthesis of silylene complexes of Mn, Cr, Co, Re, Mo, Rh, and Pt, and a detailed examination of the chemical and physical properties of these substances will be undertaken. The silylene complexes will be characterized by x-ray crystallography, Si-29 NMR spectroscopy, infrared spectroscopy and electrochemical measurements of redox potentials.

亚甲硅烷基金属络合物，其是其中金属 原子通过两对电子连接到硅原子上， 在他们最近在校长的合成之前， 调查员实验室由于这种复合物被认为是 作为中间体参与许多重要的 金属催化反应的硅化合物，结果 该项目预计将提供一个更好的了解 这些催化反应，并导致新的反应， 含硅材料的途径。例如，一个目标 该项目的主要目的是利用金属硅烯配合物开发 聚硅烷，聚合物的新路线，预计具有 作为结构或电子材料的有用性质。 本研究旨在合成和研究 晚期或低价过渡金属的亚甲硅烷基络合物。 一般的合成程序将被开发用于 合成Mn、Cr、Co、Re、Mo、Rh和 Pt，并详细检查化学和物理 这些物质的性质将被研究。亚甲硅烷基 复合物将通过X射线晶体学，Si-29 NMR光谱、红外光谱和电化学 氧化还原电位的测量。