New Structural Modes of Organic Molecules Containing Silicon and Congeners

含硅有机分子及其同系物的新结构模式

• 批准号: 9725652
• 负责人: Joseph Lambert
• 金额: $ 42.28万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-01-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9725652&HistoricalAwards=false
• 关键词: New; Structural; Modes; Organic; Molecules

The foci of this research include five areas of silicon and related organic chemistry. First, new materials containing positive charge on silicon, germanium, tin and phosphorus will be prepared. Second, methods will be employed to create a variety of stable carbocations, usually stabilized by silicon, at room temperature. Third, dendritic polysilanes will be prepared and tested for their conductive and nonlinear optical properties, and in one case as a molecular wire. Fourth, a new area of sulfur chemistry will be developed in which sulfur substituents are exploited to stabilize positive charge. Fifth, the practical properties of silicates will be used to synthesize a new class of materials that are largely self assembling, have considerable stability, offer vacancies and channels for inclusion of guests, and contain synthetically tunable groups that can enhance these properties. With this renewal award, the Organic and Macromolecular Chemistry Program is supporting the research of Dr. Joseph B. Lambert of the Department of Chemistry at Northwestern University. Professor Lambert will focus his work on incorporating silicon into normal analogues of carbon compounds or into novel structures to create molecules with potentially important properties. The properties may be of theoretical interest or they may offer new practical applications. The scope of the project is increased by including germanium, tin sulfur and phosphorus in the synthetic plan

本研究的重点包括硅和相关的五个领域 有机化学。 首先，新材料含有正电荷， 将制备硅、锗、锡和磷。 二、方法 将用于产生各种稳定的碳阳离子，通常 在室温下由硅稳定。第三，树枝状聚硅烷 将准备和测试其导电性和非线性光学 性质，并且在一种情况下作为分子线。 第四，一个新的领域 将发展硫化学，其中硫取代基被 用来稳定正电荷 第五，实用性 硅酸盐将用于合成一类新材料， 很大程度上是自组装，具有相当大的稳定性，提供空位， 通道包含客人，并包含合成可调 可以增强这些特性的基团。 有了这个更新奖， 有机和高分子化学计划正在支持这项研究 约瑟夫博士的B。西北大学化学系的兰伯特说， 大学 兰伯特教授将把他的工作重点放在 硅转化为碳化合物的正常类似物或转化为新的 结构来创造具有潜在重要性质的分子。 这些特性可能具有理论意义，也可能提供新的 实际应用等 该项目的范围增加了 合成方案中包括锗、锡、硫、磷，