New Systematic Routes for the Creation and Utilization of Compounds Containing Coordinated H2

含配位 H2 化合物的生成和利用的新系统路线

• 批准号: 9103915
• 负责人: Kenneth Caulton
• 金额: $ 36.2万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-05-15 至 1994-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9103915&HistoricalAwards=false
• 关键词: New; Systematic; Routes; Creation; Utilization

Oxidation of metal hydride compounds will be used as a method for the systematic synthesis of coordinated dihydrogen. Both one- and two-electron oxidations are anticipated, both in non- coordinating solvents and in the presence of potential ligands. For transient products, chemical oxidation will be complemented with rapid scan electrochemical studies using microelectrodes. As an alternative source of dihydrogen formation or facile creation of unsaturation in a polyhydride compound, the intro- duction into the coordination sphere of a strong pi-donor ligand (alkoxide) will be explored. Preliminary results with an iridium compound support the utility of this concept. Finally, a method for combining hydride and alkoxide ligands in the coordination sphere of an early/late transition metal heterobimetallic compound will be investigated. %%% In this project in the Inorganic, Bioinorganic, and Organo- metallic Program of the Chemistry Division, Dr. Kenneth G. Caulton of Indiana University will explore ways to create coordinated dihydrogen and determine its chemical reactivity. These studies should have important implications for how various catalysts function in hydrogenation reactions, one of the most important industrial processes currently in use.

金属氢化物的氧化将作为系统合成配位二氢的一种方法。在非配位溶剂和有潜在配体存在的情况下，均可预期发生单电子和双电子氧化。对于瞬态产物，化学氧化将与使用微电极的快速扫描电化学研究相辅相成。作为多氢化物中形成二氢或容易产生不饱和的替代来源，将探讨强pi-给体配体（醇氧基）在配位球中的引入。一种铱化合物的初步结果支持这一概念的实用性。最后，研究了在早/晚过渡金属杂双金属化合物配位球中氢化物与醇氧体结合的方法。在化学学部无机、生物无机和有机金属项目的这个项目中，印第安纳大学的Kenneth G. Caulton博士将探索创造协调双氢并确定其化学反应性的方法。这些研究应该对各种催化剂在氢化反应中的作用具有重要意义，氢化反应是目前使用的最重要的工业过程之一。