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

这个奖项在无机，生物无机和有机化学计划支持研究杰拉德F。R.哥伦比亚大学化学系的Parkin博士，关于新型主族化合物的合成。所制备的s-和p-嵌段化合物将具有目前未知的功能，例如带有末端硫属配体的锌络合物和具有末端磷属元素化物配体的镓络合物。这种类型的分子是未知的，并且鉴于可能的末端配体与金属多重键合而具有固有的基本兴趣。这些配合物的合成将依赖于所构建的配体的使用，以便稳定所研究的官能团。这些包括各种三-（吡唑基）硼酸盐和双-和三-（巯基咪唑基）氢化硼酸盐配体、基于苯平台的C3-对称三齿配体、氮杂三环配体、三苯氧杂环丙烷配体和吡咯基配体。特别关注的是具有新颖结构但与已发现工业应用的材料有组成关系的配合物。主族元素在合成化学、固态材料和催化反应中有各种重要的应用。该项目旨在了解周期表中s和p区的一些较重成员的一些不寻常的键合和结构特性。对锌和镓与末端配体的键合的理解可以提供对材料的气相路线的一些了解。该项目将涉及本科生、研究生和博士后学生。PI和他的学生将参与当地学校的外展活动。

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.