Organometallic complexes of late d-block elements and pi-acid ligands

得克萨斯大学阿灵顿分校的H·V·拉西卡·迪亚斯教授获得了化学系化学合成(SYN)项目的这一奖项，他将研究晚期d-嵌段元素的有机金属化学。特别是，拟议的活动旨在开发战略，以稳定具有一个或多个不饱和的、以碳为中心的聚酸配体的稀有金属加合物，如一氧化碳、烯烃和炔烃在“裸”或辅助配体支撑的第12族金属(锌、镉、汞)或硬币金属(铜、金、金)离子上的稳定。除了研究这些配合物的结构和金属-配体的成键作用外，金属介导的环加成过程，如配位配体的[2 2 2]化学和亲核加成化学，由于它们允许在金属离子模板上构建有用的环系统和碳氢化合物的官能化，所以特别令人感兴趣。Dias教授计划在这项工作中开发的新的弱配位和高度氟化的配体和阴离子将潜在地有助于稳定涉及各种其他金属离子的活性和不稳定的金属分子。这项工作将显著提高我们对第11和12族金属的有机金属化学的理解，并为一系列工业上重要的金属催化过程提供关于关键中间体的有用的新信息。这项工作将为键的活化和有用的新化学物质提供更温和的途径。首席研究员还将指导K-12教师和高中生，并培训具有不同现代化学研究背景的研究生和本科生研究人员。迪亚斯教授还计划利用德克萨斯大学阿灵顿分校的天文馆放映数字电影，以教育和激发年轻观众和普通公众关于化学和科学的知识。与外国大学教职员工的广泛合作将继续下去，因为它们为学生提供了学习新文化和团队合作的价值的机会。

With this award from the Chemical Synthesis (SYN) Program of the Chemistry Division, Professor H. V. Rasika Dias of the University of Texas at Arlington will investigate organometallic chemistry of late d-block elements. In particular, the proposed activity is aimed at developing strategies for the stabilization of rare metal adducts featuring one or more unsaturated, carbon centered, pi-acid ligands such as carbon monoxide, alkenes, and alkynes on either "naked" or auxiliary ligand supported group 12 metal (Zn, Cd, Hg) or coinage metal (Cu, Au, Au) ions. In addition to the study of structures and metal-ligand bonding of these complexes, metal mediated cycloaddition processes such as [2+2+2] chemistry and nucleophilic addition chemistry of coordinated ligands are of particular interest as they permit the construction of useful ring systems on a metal ion template and the functionalization of hydrocarbons. The new weakly coordinating and highly fluorinated ligands and anions Professor Dias plans to develop during this work will be potentially useful for the stabilization of reactive and labile metal molecules involving various other metal ions as well.This work will significantly improve our understanding of the organometallic chemistry of the group 11 and 12 metals and provide useful new information on key intermediates proposed for a range of industrially important metal catalyzed processes. This work will provide milder routes to the activation of bonds and useful new chemicals. The principal investigator will also mentor K-12 teachers and high school students, and train graduate and undergraduate researchers with diverse backgrounds in modern chemical research. Professor Dias also plans to utilize the Planetarium at the University of Texas at Arlington to show digital movies to educate and excite young audiences and general public on chemistry and science. Extensive collaborations with faculty members at foreign universities will continue as they provide opportunities for students to learn new cultures and the value of team-work.