Synthetic, Structural and Mechanistic Studies of s- and p-Block Metal Complexes with Multiply Bonded and Other Reactive Functionalities

这个无机、生物无机和有机金属化学项目的奖项支持哥伦比亚大学化学系的Gerard F. R. Parkin关于合成新型主基团化合物的研究。所制备的s-和p-嵌段化合物将具有目前未知的功能，例如带有末端硫基配体的锌配合物和带有末端嘌呤配体的镓配合物。这种类型的分子是未知的，鉴于可能的末端配体与金属多键具有内在的基本兴趣。这些配合物的合成将依赖于为稳定所研究的功能而构建的配体的使用。这些配体包括各种三（吡唑基）硼酸盐、二和三（巯基咪唑基）氢硼酸盐配体、基于苯平台的c3对称三齿配体、烷配体、三苯氧基配体和吡啶基配体。将特别关注具有新结构但与已经发现工业应用的材料具有组成关系的配合物。主要族元素在合成化学，固态材料和催化反应中具有各种重要应用。该项目旨在了解元素周期表中s-和p-基团中一些较重成员的一些不寻常的键和结构特性。了解锌和镓与末端配体的键合可以为材料的气相路径提供一些见解。该项目将涉及本科生、研究生和博士后。PI和他的学生将参与到当地学校的外展活动中。

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports research by Gerard F. R. Parkin of the Department of Chemistry, Columbia University, on the synthesis of novel main group compounds. The s- and p-block compounds prepared will feature currently unknown functionalities, such as zinc complexes that bear terminal chalcogenido ligands and gallium complexes with terminal pnictide ligands. Molecules of this type are unknown and are of intrinsic fundamental interest in view of possible terminal-ligand to metal multiple bonding. The syntheses of these complexes will rely upon the use of ligands constructed so as to stabilize the functionalities under investigation. These include various tris-(pyrazolyl)borate and bis- and tris-(mercaptoimidazolyl)hydroborate ligands, C3-symmetric tridentate ligands based on a benzene platform, atranes ligands, terphenoxide ligands, and pyrrolyl ligands. Specific attention will be given to complexes that have novel structures but have a compositional relationship to the materials that have already found industrial applicationsThe main group elements have a variety of important applications in synthetic chemistry, solid state materials, and catalytic reactions. This project aims at understanding some of the unusual bonding and structural properties of some of the heavier members of the s- and p-block of the periodic table. Understanding of zinc and gallium bonding to terminal ligands may provide some insight into gas phase routes to materials. The project will involve undergraduate, graduate and postdoctoral students. The PI and his students will be involved in outreach to local schools.