Purchase of Single Crystal and Powder X-Ray Diffractometers

购买单晶和粉末X射线衍射仪

• 批准号: 9014207
• 负责人: James Espenson
• 金额: $ 20.65万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-15 至 1991-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9014207&HistoricalAwards=false
• 关键词: Purchase; Single; Crystal; Powder; Ray

Single crystal and powder X-ray crystallography is the most powerful analytical method for structure determination of solids. In synthetic inorganic, organic, bioinorganic and organometallic chemistry, single crystal X-ray diffraction is an invaluable tool to characterize molecular structure, whereas powder diffraction determines purity. The information gained from the knowledge of the intermolecular composition and structure helps to develop new reactions of potentially general interest in catalysis or organic synthesis. This award from the Chemistry Shared Instrumentation Program will help the Department of Chemistry at the Iowa State University acquire a single-crystal X-ray diffractometer and a powder diffraction system. Among the areas of chemical research that will be enhanced by the acquisition are the following: l. Solid state chemistry of metal-metal bonded cluster, chain and sheet systems 2. High-temperature solid state chemistry of binary and ternary phases 3. Precursors to carbides, nitrides and oxides of metals and nonmetals 4. Ultra-thin mixed metal oxide film structures 5. Organo-element chemistry where the element is silicon, germanium, tin, phosphorus, arsenic, mercury or a transition metal 6. Bioinorganic and bioorganic chemistry

单晶和粉末X射线晶体学是最 结构测定的强有力的分析方法， 固体 在合成无机，有机，生物无机和 有机金属化学，单晶X射线衍射， 一个宝贵的工具来表征分子结构，而 粉末衍射测定纯度。 获得的信息 从分子间组成的知识， 结构有助于开发潜在的通用的新反应， 对催化或有机合成感兴趣。 化学共享仪器计划（Chemistry Shared Instruments Program） 将帮助爱荷华州的化学系 大学购置了一台单晶X射线衍射仪和一台 粉末衍射系统 在化学领域中， 此次收购将加强的研究包括 以下内容： L. 金属-金属键合团簇的固态化学， 链板系统 2. 高温固态化学 三元相 3. 金属碳化物、氮化物和氧化物的前体 和非金属 4. 超薄混合金属氧化物膜结构 5. 有机元素化学中的元素是硅， 锗、锡、磷、砷、汞或它们的组合。 过渡金属 6. 生物无机和生物有机化学