Acquisition of an X-ray Powder Diffractometer with an Area Detector and Variable Temperature Capability

配备区域探测器和可变温度功能的 X 射线粉末衍射仪的采集

• 批准号: 0077637
• 负责人: Daniel Martire
• 金额: $ 9.75万
• 依托单位: Georgetown University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0077637&HistoricalAwards=false
• 关键词: Acquisition; ray; Powder; Diffractometer; Area

With this award from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at Georgetown University will acquire an X-ray powder diffractometer with area detector and variable temperature capability. This equipment will enhance research in a number of areas including the following: a) studies on liquid crystalline phases and the nature of the supramolecular structures in these systems; b) intermolecular interactions of and the supramolecular architecture of low molecular mass gelator materials within gel matrices; c) the relationship between growth of nanocrystalline solids in preferred orientations and resulting optical effects; and d) the identification of solid state materials via the determination of cell constants.The X-ray diffractometer allows accurate and precise measurements of the full three dimensional structure of a molecule, including bond distances and angles, and it provides accurate information about the spatial arrangement of the molecule relative to the neighboring molecules. These studies will have a signifcant impact in materials sciences.

凭借化学研究仪器和设施（CRIF）计划的这一奖项，乔治敦大学化学系将获得一台具有区域探测器和变温能力的X射线粉末衍射仪。 这一设备将加强若干领域的研究，包括：a）对液晶相和这些系统中超分子结构性质的研究; B）凝胶基质中低分子量胶凝剂材料的分子间相互作用和超分子结构; c）纳米晶体固体在优选取向上的生长与所产生的光学效应之间的关系;以及d）通过测定晶胞常数来鉴定固态材料。X射线衍射仪允许精确和精确地测量分子的完整三维结构，包括键距和键角，并且它提供关于分子相对于相邻分子的空间排列的精确信息。 这些研究将对材料科学产生重大影响。