Main Group Elements in Unusual Environments

异常环境中的主族元素

• 批准号: 9108228
• 负责人: Alan Cowley
• 金额: $ 68.8万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-15 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9108228&HistoricalAwards=false
• 关键词: Main; Group; Elements; Unusual; Environments

This award in the Inorganic, Bioinorganic, and Organometallic Program is to Dr. Alan H. Cowley of the University of Texas at Austin for fundamental work on the synthesis of novel compounds containing main group elements. The elements to be studied include E = P, As, Sb, and Bi from group 15 and M = Al, Ga, and In from group 13. The goal of the research is to prepare low coordination number fragments of RE (i.e., phosphinidenes, arsinidenes, stibinidenes, and bismuthinidenes) and RM (four electron carbenoid species) and incorporate those fragments into novel rings, clusters, and polymers or use them as ligands. The substituent R may be methyl, ethyl, or a wide variety of bulky hydrocarbons. The fragments will be generated by thermal, photochemical or electrochemical elimination of hydrogen, carbon monoxide, carbon dioxide, or disilane and its heavier congeners. The project includes the synthesis of group 13 heterocycles, the synthesis of group 13 and group 15 compounds as potential sources of ME fragments, the construction of molecules of the type (RMERR)n, where n = 1-3, with unusual geometries, and the stabilization of ME fragments by coordination to transition metals. %%% Preparation of compounds containing aluminum, gallium, or indium together with phosphorus, arsenic or antimony may result in materials with interesting optical or electrical properties. One goal of this research is to attach different types of groups which absorb light (chromophores) to compounds containing the pairs of elements mentioned above. Introduction of such groups could enable use of these or related compounds in the manufacture of semiconductors by photo-assisted growth. Because diffusion might be reduced and sharper junctions produced, this would be a desirable alternative to present thermal methods.

该奖项在无机，生物无机和有机化学 艾伦·H博士的节目。德克萨斯大学的考利在 奥斯汀，以表彰他在新型化合物合成方面的基础工作 包含主族元素。 要研究的内容 包括来自第15族E = P、As、Sb和Bi，M = Al、Ga， 从13组来的。 研究的目的是准备低 RE的协调编号片段（即，膦酰亚胺， 砷、锑和铋）和RM（四种 电子类卡宾物质）并将这些片段 成新的环、簇和聚合物，或将它们用作 配体。 取代基R可以是甲基、乙基或其任意组合。 各种体积庞大的碳氢化合物。 碎片将被生成 通过热、光化学或电化学消除 氢、一氧化碳、二氧化碳或乙硅烷及其 更重的同源物。 该项目包括综合组 13个杂环，第13族和第15族的合成 化合物作为ME片段的潜在来源， （RMERR）n型分子的构建，其中n = 1 - 3， 具有不寻常的几何形状，以及ME碎片的稳定性 与过渡金属配位。 %%% 制备含有铝、镓或 可能导致铟与磷、砷或锑一起 具有有趣的光学或电学特性的材料。 这项研究的一个目标是将不同类型的 吸收光的基团（发色团） 包含上面提到的元素对。介绍 可以使得这些或相关化合物 在通过光辅助生长的半导体制造中。 因为扩散可能会减少， 这将是一个理想的替代目前 热方法