MRI-R^2: Acquisition of powder X-ray diffraction instrument for faculty research and undergraduate education

MRI-R^2：购置粉末X射线衍射仪用于教师研究和本科生教育

• 批准号: 0959526
• 负责人: Christoph Geiss
• 金额: $ 11.7万
• 依托单位: Trinity College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0959526&HistoricalAwards=false
• 关键词: MRI; Acquisition; powder; ray; diffraction

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).With this award from the Major Research Instrumentation (MRI) program Professor Christoph Geiss and colleagues Jonathan R. Gourley, Ralph O. Moyer, and Maria Parr from the Departments of Chemistry, Physics and Environmental Science at Trinity College will acquire a powder X-ray diffractometer which will be capable of providing good quality structural (Rietveld) analyses which can also be used as an analytical instrument for classroom use. The instrument will be used to support research activities such as: 1) characterization of iron-minerals in sediments and soil; 2) fault zone fluid migration pathways; 3) trace metal sediment concentrations in impaired watersheds; 4) synthesis, structure and characterization of ternary metal hydrides and hydrogen storage; 5) structure and characterization of Yb2RuH6(D6); 6) high pressure X-ray diffraction of A2RuH6 compounds; and 7) characterization of transition metal complexes and archaeological materials.An X-ray diffractometer allows accurate and precise measurements of the full three dimensional structure of a molecule, including bond distances and angles, and provides accurate information about the spatial arrangement of a molecule relative to neighboring molecules. A powder diffractometer allows diffraction studies in powdered crystalline materials. The studies described here will impact a number of areas, including chemistry, materials chemistry, geology, archeology and the environment. This instrument will be an integral part of teaching as well as research.

该奖项是根据2009年《美国复苏与再投资法案》(Public Law 111-5)获得的。在重大研究仪器(MRI)项目的资助下，圣三一学院化学、物理和环境科学系的Christoph Geiss教授及其同事Jonathan R.Gourley、Ralph O.Moyer和Maria Parr将获得一台粉末X射线衍射仪，它将能够提供高质量的结构(Rietveld)分析，也可用作课堂使用的分析仪器。该仪器将用于支持下列研究活动：1)沉积物和土壤中铁矿物的表征；2)断裂带流体迁移途径；3)受损流域中痕量金属沉积物的浓度；4)三元金属氢化物和储氢的合成、结构和表征；5)Yb2RuH6(D6)的结构和表征；6)A2RuH6化合物的高压X射线衍射；7)过渡金属络合物和考古材料的表征。X射线衍射仪可以准确和精确地测量分子的全部三维结构，包括键距离和角度，并提供关于分子相对于邻近分子的空间排列的准确信息。粉末衍射仪可用于粉末晶体材料的衍射研究。这里描述的研究将影响许多领域，包括化学、材料化学、地质学、考古学和环境。该仪器将成为教学和研究不可或缺的一部分。