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。该设备将加强下列领域的研究：1)磁阻材料薄膜的表征；2)水溶液沉积巨大磁阻薄膜的结构-性能关系(DAAS)技术；3)粉末样品和金属间化合物薄膜的鉴定；4)层状金属间化合物作为量子阱结构的化学修饰；5)碳硼烷化合物；6)金属碳硼烷的合成和表征；7)手性二芳基二硒化合物的设计和合成；以及8)表征和用作不对称催化剂还原前手性自由基。X射线衍射仪可以精确和精确地测量分子的全部三维结构，包括键的距离和角度，并提供关于分子相对于邻近分子的空间排列的准确信息。这台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，学生将有机会亲身参与研究和课堂环境。

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.