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

晚 d 区元素和 pi 酸配体的有机金属配合物

• 批准号: 1265807
• 负责人: Rasika Dias
• 金额: $ 45万
• 依托单位: University of Texas at Arlington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-01 至 2018-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1265807&HistoricalAwards=false
• 关键词: Organometallic; complexes; late; block; elements

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.

德克萨斯大学阿灵顿分校的 H. V. Rasika Dias 教授获得化学部化学合成 (SYN) 项目的这一奖项，将研究晚期 d 区元素的有机金属化学。特别是，所提议的活动旨在开发稳定稀有金属加合物的策略，该加合物具有一种或多种不饱和、碳中心、π-酸配体，例如“裸露”或辅助配体支撑基团上的一氧化碳、烯烃和炔烃12 种金属（Zn、Cd、Hg）或造币金属（Cu、Au、Au）离子。 除了研究这些配合物的结构和金属-配体键合之外，金属介导的环加成过程（例如配位配体的[2+2+2]化学和亲核加成化学）也特别令人感兴趣，因为它们允许构建有用的环系统金属离子模板和碳氢化合物的功能化。 迪亚斯教授计划在这项工作中开发新的弱配位和高度氟化的配体和阴离子，这对于稳定涉及各种其他金属离子的反应性和不稳定金属分子具有潜在的用途。这项工作将显着提高我们对有机金属化学的理解11 族和 12 族金属，并提供有关为一系列工业上重要的金属催化过程提出的关键中间体的有用的新信息。 这项工作将为激活键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，并培训具有现代化学研究不同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公众对化学和科学的兴趣。 将继续与外国大学教师进行广泛的合作，因为它们为学生提供学习新文化和团队合作价值的机会。