The Chemistry of Unsaturated Transition Metal-Silicon Compounds

Don Tilley教授，加州大学伯克利分校化学系，由无机、生物无机和有机金属化学项目支持，制备和研究硅基化合物和材料，这些化合物和材料具有化学、结构和电子特性，使它们有可能适用于各种科学和技术应用。所采用的主要策略是使用过渡金属试剂和催化剂，这些试剂和催化剂（多年来）已经产生了大量重要的碳基产品。在目前的情况下，努力将集中在制造“类似”的硅基材料上，首先检查金属中心硅的基本转变（例如硅烯，SiR2; silenes, R2Si=SiR'2，等等，特别是LnM=SiR2系统），然后通过探索这些物种的结构，键合和结构-反应性关系。Tilley教授一直是开发金属硅化合物合成方法的领导者。还将努力瞄准含有不饱和硅和锗原子的新pi系统，希望这些新系统将提供一些不寻常的电子特性，从而可能让位于在硅和锗中结合双键的共轭大分子。

Professor Don Tilley, Department of Chemistry, University of California at Berkeley is supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program to prepare and investigate silicon-based compounds and materials that possess chemical, structural and electronic properties making them potentially suitable for diverse scientific and technological applications. The principal strategy employed is to use transition metal reagents and catalysts that has resulted (through the years) in the production of a wealth of important carbon-based products. In the present instance, efforts will be focussed towards making "analogous" but silicon-based materials by examining first the fundamental transformations of silicon species (e.g. silylene, SiR2; silenes, R2Si=SiR'2, etc..particularly LnM=SiR2 systems) at the metal centers, and subsequently by exploring the structures, bonding, and structure-reactivity relationships in these species. Professor Tilley has been a leader in developing synthetic methodologies in metal-silicon compounds. Efforts will also be expended towards targeting new pi-systems containing unsaturated silicon and germanium atoms in the hope that these new systems will provide some unusual electronic properties that might give way to conjugated macromolecules incorporating double bonds in silicon and germanium.