Metal-Rich Halides as Precursors for Solution Cluster Chemistry and the Exploitation of Ionic Liquids as Solvent

富金属卤化物作为溶液簇化学的前体以及离子液体作为溶剂的开发

• 批准号: 9623255
• 负责人: Timothy Hughbanks
• 金额: $ 32.2万
• 依托单位: Texas A&M Research Foundation
• 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: 1996-05-15 至 2000-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9623255&HistoricalAwards=false
• 关键词: Metal; Rich; Halides; Precursors; Solution

Dr. Timothy Hughbanks, Department of Chemistry, Texas A & M University, is supported by the Inorganic, Bioinorganic, and Organometallic Program of the Chemistry Division for an investigation of the solution chemistry of polymers and clusters containing metal-metal bonds and of ionic liquids as media for the crystallization of cluster based compounds. Group 3, 4, and lanthanide clusters, which are known to exist in the solid state, will be extracted into solution using an imidizolium/aluminum trichloride mixture, which is liquid at room temperature. The solution medium will permit these clusters to be characterized as molecular species and to be manipulated in a more controlled, rational fashion than is possible with purely solid state phases. The project will initially concentrate on a series of zirconium based systems and will develop these as precursors to extended clusters and polymers. As the project progresses, a systematic investigation will be carried out on the use of ionic liquids as solvents for the preparation and crystallization of a variety of cluster compounds. This project aims at devising a new method of preparing and manipulating polymers composed of metal atoms. While such metal species are known to exist in the solid state, the syntheses are not simple and it is often impossible to use these cluster and polymeric substances as, for example, starting materials for more complex polymers or clusters. A new 'ionic' solvent system has been devised and this will be used to dissolve the materials from the solid. By obtaining them in solution, it will be possible to both characterize them and utilize them to reproducibly form new, presently unknown materials.

Timothy Hughbanks博士，德克萨斯农工大学化学系， 由无机，生物无机和有机物计划支持 研究溶液化学 含有金属-金属键的聚合物和簇以及离子 液体作为介质的结晶簇基化合物。 第3、4族和镧系元素簇，其已知存在于 固态，将使用 咪唑鎓/铝盐混合物，其在室温下为液体 温度 溶液介质将允许这些簇被 被表征为分子物种，并且以更高的操作性被操纵。 控制，理性的方式，而不是纯粹的固态 阶段。该项目最初将集中在一系列锆 的系统，并将开发这些系统作为扩展集群的先驱 和聚合物。随着项目的进展，系统的调查将 在使用离子液体作为溶剂的情况下， 各种簇合物的制备和结晶。 该项目旨在设计一种新的制备和操作方法， 由金属原子组成的聚合物。虽然已知这样的金属物质 存在于固态，合成并不简单， 不可能使用这些簇和聚合物物质，例如， 用于更复杂的聚合物或簇的起始材料。一个新的“离子” 溶剂系统已被设计出来，这将被用来溶解 材料从固体。通过在溶液中获得它们， 可以表征它们并利用它们来可重复地形成 新的，目前未知的材料。