Biradical-like Reactive Intermediates

类双自由基反应中间体

• 批准号: 9819179
• 负责人: Josef Michl
• 金额: $ 92万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-02-15 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9819179&HistoricalAwards=false
• 关键词: Biradical; like; Reactive; Intermediates

With this renewal award the Organic and Macromolecular Chemistry Program supports the work of Dr. Josef Michl in the Department of Chemistry at the University of Colorado in Boulder. The research aims to extend earlier work in three areas: 1) spin-orbit coupling and zero-field splitting in triplet biradicals, 2) wavelength dependent photochemical reactions of a hydrocarbon containing parallel benzene rings, and involving intersystem crossing, and 3) the synthesis of derivatives of [1.1.1]propellane. Most of the work however will be devoted to the synthesis and properties of new alkylated and fluoroalkylated carborane anions and radicals.The carborane compounds will be used to generate reactive intermediates, catalyze reactions with Li+ cation, oxidize very weak reducing agents, prepare unusual oxidation states of metals, and prepare magnetic and electrically conducting materials. These may have applications in lithium batteries, fuel cell membranes, and catalysis of olefin polymerization. Undergraduate, graduate, and postdoctoral students working with the PI will gain valuable experience in organic and metallo-organic chemistry, spectroscopy, computation, and materials science.

有了这个更新奖的有机和高分子化学计划支持博士约瑟夫Michl在化学系在科罗拉多大学博尔德分校的工作。 该研究旨在扩展三个领域的早期工作：1）三重态双自由基的自旋轨道耦合和零场分裂，2）含有平行苯环的烃的波长依赖的光化学反应，并涉及系统间交叉，以及3）[1.1.1]螺桨烷衍生物的合成。 然而，大部分工作将致力于新的烷基化和氟烷基化碳硼烷阴离子和自由基的合成和性质。碳硼烷化合物将用于产生活性中间体，催化与Li+阳离子的反应，氧化非常弱的还原剂，制备不寻常的金属氧化态，以及制备磁性和导电材料。 这些可在锂电池、燃料电池膜和烯烃聚合催化中具有应用。 与PI合作的本科生，研究生和博士后学生将获得有机和金属有机化学，光谱学，计算和材料科学方面的宝贵经验。