Expanding the Limits of the Coordination of Molecular Hydrogen

扩大氢分子配位的极限

• 批准号: 9412830
• 负责人: Kenneth Caulton
• 金额: $ 39.24万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-15 至 1997-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9412830&HistoricalAwards=false
• 关键词: Expanding; Limits; Coordination; Molecular; Hydrogen

9412830 Caulton Indiana Univ. - Bloomington Dr. Kenneth G. Caulton, Chemistry Department, University of Indiana at Bloomington, is supported by the Inorganic, Bioinorganic, and Organometallic Chemistry Program of the Chemistry Division for an investigation of the structure and function of hydrogen ligands which are attached to catalytically active late transition metals. Methods of forming complexes of osmium, platinum, and rhodium which contain hydride and dihydrogen ligands will be developed. The kinetics and thermodynamics of ligand binding and exchange, and the mechanism of magnetic exchange within these molecules will be evaluated. Attempts will be made to extend dihydrogen coordination to new metals and to new oxidation states. The results of these studies will be utilized to design new catalysts for, in particular, olefin hydration. Hydrogen molecules may become activated by interacting metal atoms. This property has been exploited for a long time in both laboratory and industrial chemistry to increase the ability of hydrogen to undergo many reactions. In another respect, the interactions between hydrogen and metals has become an important topic with the increased interest in hydrogen as a clean fuel. This project will evaluate the fundamental ways in which hydrogen becomes attached to a metal. Using this data, new compounds containing hydrogen will be designed and a new method of performing the industrially very important addition of water to an unsaturated organic compound, i.e. "olefin hydration", will be developed.

9412830考尔顿印第安纳州大学-布卢明顿肯尼思G. Caulton，印第安纳州大学布卢明顿分校化学系，得到化学系无机、生物无机和有机化学项目的支持，研究连接到催化活性后过渡金属上的氢配体的结构和功能。将开发形成含有氢化物和二氢配体的锇、铂和铑的络合物的方法。配体结合和交换的动力学和热力学，以及这些分子内的磁交换机制将被评估。尝试将二氢配位扩展到新的金属和新的氧化态。这些研究的结果将被用来设计新的催化剂，特别是烯烃水合。 氢分子可以被相互作用的金属原子激活。这种性质已经在实验室和工业化学中被利用了很长时间，以增加氢进行许多反应的能力。另一方面，随着人们对氢作为清洁燃料的兴趣的增加，氢与金属之间的相互作用已经成为一个重要的课题。该项目将评估氢附着在金属上的基本方式。利用这些数据，将设计新的含氢化合物，并开发一种在工业上非常重要的将水加成到不饱和有机化合物中的新方法，即“烯烃水合”。