New Structural Modes of Organic Molecules Containing Silicon and Congeners

本研究的重点包括硅及相关有机化学的五个领域。首先，将制备硅、锗、锡和磷上含有正电荷的新材料。其次，将采用各种方法在室温下制造各种稳定的碳正离子，通常由硅稳定。第三，树突状聚硅烷将被制备并测试其导电和非线性光学性质，其中一种情况是作为分子线。第四，利用硫取代基稳定正电荷将成为硫化学的一个新领域。第五，硅酸盐的实际性质将用于合成一种新的材料，这种材料在很大程度上是自组装的，具有相当大的稳定性，提供空位和容纳来宾的通道，并包含可以增强这些性质的合成可调基团。有了这个更新奖，有机和大分子化学项目支持西北大学化学系约瑟夫·b·兰伯特博士的研究。兰伯特教授将把他的工作重点放在将硅结合到碳化合物的正常类似物或新结构中，以创造具有潜在重要性质的分子。这些性质可能具有理论意义，也可能提供新的实际应用。将锗、锡、硫、磷纳入合成方案，扩大了项目范围

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