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

这项研究的重点包括硅和相关有机化学的五个领域。 首先，制备硅、锗、锡、磷上带正电荷的新材料。 其次，将采用方法在室温下产生各种稳定的碳阳离子，通常由硅稳定。第三，将制备树枝状聚硅烷并测试其导电和非线性光学特性，并在一种情况下作为分子线。 第四，将开发硫化学的新领域，其中利用硫取代基来稳定正电荷。 第五，硅酸盐的实用特性将用于合成一类新型材料，这些材料主要是自组装的，具有相当大的稳定性，为包含客体提供空位和通道，并包含可以增强这些特性的合成可调基团。 通过这一续奖，有机和高分子化学项目正在支持西北大学化学系 Joseph B. Lambert 博士的研究。 兰伯特教授的工作重点是将硅融入碳化合物的正常类似物或新颖的结构中，以创造具有潜在重要特性的分子。 这些特性可能具有理论意义，也可能提供新的实际应用。 项目范围扩大，将锗、锡硫、磷纳入合成计划