Purchase of Instrumentation for the Service Small-Molecule X-Ray Crystallography Laboratory

来自化学研究仪器和设施项目的这一奖项将帮助科罗拉多大学博尔德分校化学系购买现代单晶衍射系统。这一新的仪器将大大加强一些领域的研究，包括：(1)含有醌和自由基半喹配体的过渡金属络合物；(2)金属硫化物在碳杂原子和金属硫键断裂中的作用；(3)分子内Lewis酸作为立体化学控制元素；(4)2，5-二羧基稳定的1，4-二氢吡嗪作为电子供体在合成有机导体和磁体中的作用；(5)扩展的骨架稳定的环状和线形磷杂环烷；以及(6)分子棒和连接体的单晶X射线结构。X射线衍射仪是用来精确和精确地测量分子的全部三维结构。得到的信息给出了给定分子的所有键距和键角的精确值，并提供了关于该分子相对于邻近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 the University of Colorado--Boulder in the purchase of a modern single-crystal diffraction system. This new instrumentation will enhance greatly research in a number of areas, including the following: (1) transition metal complexes containing quinone and radical semiquinone ligands; (2) role of metal sulfides in carbon-heteroatom and metal sulfur bond cleavage; (3) intramolecular Lewis acids as stereochemical control elements; (4) 2,5-Dicarboxy-Stabilized 1,4-Dihydropyrazines as electron donors in the synthesis of organic conductors and magnets; (5) extended skeletally stabilized cyclic and linear phosphazanes; and (6) single crystal x-ray structures of molecular rods and connectors. 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 that molecule relative to the neighboring molecules.