Purchase of an X-Ray Diffractometer

化学研究仪器和设施计划的这一奖项将帮助密歇根大学化学系获得西门子SMART/CCD系统，用于收集X射线衍射数据。该设备将加强以下领域的研究：（1）基于硼杂苯锆衍生物的新型烯烃聚合催化剂，（2）固氮酶中FE/Mo/S位点的合成类似物，（3）双金属簇和HDS催化，（4）基于超分子键合的扩展网络，以及（5）锰的配位化学。 X射线衍射仪用于精确测量分子的完整三维结构。所获得的信息给出了给定分子的所有键距和键角的精确值，并且它给出了关于该分子相对于相邻分子的空间排列的准确信息。

This award from the Chemistry Research Instrumentation and Facilities Program will assist the Department of Chemistry at University of Michigan to acquire a Siemens SMART/CCD system for collecting X-ray diffraction data. This equipment will enhance research in a number of areas including the following: (1) new olefin polymerization catalysts based on boratabenzene zirconium derivatives, (2) synthetic analogs for the FE/Mo/S site in nitrogenase, (3) bimetallic clusters and HDS catalysis, (4) extended networks based on supramolecular bonding, and (5) the coordination chemistry of manganese. The X-ray diffractometer is used to make accurate and precise measurements of the full three dimensional structure of a molecule. The information obtained gives the precise values of all the bond distances and bond angles of a given molecule and it gives accurate information about the spatial arrangement of the molecule relative to the neighboring molecules.