The Molecular Precursor Strategy for Production of Solid State Materials

固态材料生产的分子前体策略

• 批准号: 8802253
• 负责人: Kenneth Caulton
• 金额: $ 55.17万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-15 至 1992-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8802253&HistoricalAwards=false
• 关键词: Molecular; Precursor; Strategy; Production; Solid

This grant, funded jointly by Special Projects in Chemistry and the Division of Materials Research provides support for the research of Profs. Caulton and Chisholm at the University of Indiana. The objective of the research is to apply the principles of molecular inorganic and organometallic chemistry to the synthesis of useful solid-state materials such as metal carbides, nitrides and high temperature superconducting oxides. The carbide and nitrides can be made by conversion of molecular carbides and nitrides or by converting hydrocarbyl or amido ligands to these atomic groups by thermal or photochemical methods. Surface coating with tungsten carbide is proposed via condensation of tungsten alkoxide bonds with surface hydroxyl groups. Molecular precursors to oxide superconductors will be made by condensing copper, barium and yttrium alkoxides, in certain cases augmented by oxo and peroxo-ligands. The final conversion of alkoxo to oxo ligands will be effected thermally, hydrolytically, photochemically and by using ultrasound or electron-transfer oxidation. The organic ligands will be optimized in the molecular precursors for the final conversion to the solid materials.

这项赠款由化学特别项目和 材料研究部为以下项目提供支持： 教授的研究。考尔顿和奇泽姆在密歇根大学 印第安纳州。 研究的目的是应用 分子无机与有机金属化学原理 涉及合成有用的固态材料 碳化物、氮化物和高温超导氧化物。 碳化物和氮化物可以通过分子转化来制备。 碳化物和氮化物或通过将烃基或酰氨基 通过热或光化学方法与这些原子团配位 方法.建议通过以下方式进行碳化钨表面涂层： 钨烷氧基键与表面羟基的缩合 组氧化物超导体的分子前体将是 通过冷凝铜、钡和钇的醇盐， 某些情况下通过氧代和过氧配体增强。最终 烷氧基向氧代配体的转化将通过热进行， 水解、光化学和使用超声或 电子转移氧化有机配体将是 在分子前体中进行优化， 到固体材料。