Organic and Organometallic Chemistry

有机和有机金属化学

• 批准号: 9633374
• 负责人: Robert Bergman
• 金额: $ 77万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-12-01 至 2001-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9633374&HistoricalAwards=false
• 关键词: Organic; Organometallic; Chemistry

This award in the Inorganic, Bioinorganic, and Organometallic Chemistry program provides continued support for studies of organometallic reaction mechanisms by Dr. Robert G. Bergman, Chemistry Department, University of California at Berkeley. Efforts will be focused on three projects. The first concerns interaction between transition metals from the left and right sides of the series, respectively, within a single molecule. A second goal is generation of organometallic complexes that are highly reactive due to the presence of an unpaired electron at the metal center. In such species, relatively strong covalent bonds are formed to the metal so that organic compounds that do not ordinarily associate with metals may bond and then exhibit new reactivity. Some chemistry of analogous 18-electron metal anions will also be included. The third project is the synthesis of new ligands that confer planar chirality on early and late transition metal complexes so that the stereochemistry of metal-centered reactions that carry out organic transformations with asymmetric induction may be investigated. New metal dimerization catalysts for preparing oligomers and polymers with unusual structures from dienes and polyenes will be developed. Chemical reactions involving organic molecules and transition metal complexes are fundamental to the understanding of important catalytic and biological processes. In this program, the details of reactions in which the presence of one or two metals imposes steric restrictions or develops unusual electronic driving forces will be investigated.

该奖项在无机，生物无机和有机化学 计划为有机金属反应研究提供持续支持 罗伯特·G博士的机制伯格曼，化学系，大学 加州伯克利分校。 工作重点将放在三个项目上。 的 第一个涉及从左边开始的过渡金属之间的相互作用， 右边的系列，分别在一个单一的分子。 一 第二个目标是生成高度 由于在金属中心存在未成对电子而具有反应性。 在这些物种中，与分子形成相对较强的共价键。 金属，使有机化合物，通常不与 金属可以结合，然后表现出新的反应性。 一些化学反应 也包括类似的18电子金属阴离子。 第三 项目是合成新的配体，赋予平面手性 早期和晚期过渡金属配合物， 以金属为中心的反应，进行有机转化， 可以研究不对称诱导。 新金属二聚 用于制备具有特殊结构的低聚物和聚合物的催化剂 将开发由二烯和多烯制备的聚合物。 涉及有机分子和过渡金属的化学反应 络合物是理解重要的催化和 生物过程。 在这个程序中，反应的细节，其中 一种或两种金属的存在施加了空间限制或发展 将研究不寻常的电子驱动力。