Purchase of a Powder X-Ray Diffractometer

在化学研究仪器和设施（CRIF）计划的支持下，北方伊利诺伊大学化学系将获得一台粉末X射线衍射仪。该设备将加强以下领域的研究：1）磁阻材料薄膜的表征; 2）用醋酸盐水溶液沉积技术（DAAS）研究纳米晶粒巨磁阻薄膜的结构-性能关系; 3）金属间化合物材料粉末样品和薄膜的鉴定; 4）层状金属间化合物量子阱结构的化学修饰; 5）碳硼烷化合物; 6）金属碳硼烷的合成与表征; 7）手性二芳基二硒醚的设计与合成;和8）表征和用作还原前手性自由基的不对称催化剂。X射线衍射仪可以精确测量分子的完整三维结构，包括键距和角度，并提供有关分子相对于相邻分子的空间排列的准确信息。 该仪器将对材料科学和合成化学领域的四个小组的研究产生影响。 此外，学生将有动手访问的研究目的，并在课堂上设置。

With support from the Chemistry Research Instrumentation and Facilities (CRIF) Program, the Department of Chemistry at Northern Illinois University will acquire a powder X-ray diffractometer. This equipment will enhance research in a number of areas including the following: 1) characterization of thin films of magneto-resistant materials; 2) structure-property relationships of nanograin colossal magnetoresistant films by deposition of aqueousacetate solution (DAAS) technique; 3) identification of powder samples and thin films of intermetallic materials; 4) chemical modification of layered intermetallic materials as quantum well structures; 5) carborane compounds; 6) synthesis and characterization of metallacarboranes; 7) design and synthesis of chiral diaryldiselenides; and 8) characterization and use as asymmetric catalysts in reduction of prochiral radicals. 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. This instrument will have an impact on the research of four groups in the areas of materials science and synthetic chemistry. In addition, students will have hands-on access for research purposes and in the classroom setting.