Acquisition of an X-Ray Diffraction Facility for Structural Chemistry

学术研究基础设施计划将资助一个新的最新x射线衍射设备，用于材料合成、生物化学、无机和聚合物化学领域的x射线结构分析。该设施由专用单晶仪器和聚合物/材料/一般衍射仪器组成，将提供佛罗里达大学目前不具备的新功能，包括：1)用于单晶数据收集的冷却系统，2)用于流体样品的高温样品支架，3)用于单晶衍射的电荷耦合器件区域检测器系统，4)用于聚合物、纤维和薄膜衍射的高灵敏度气体填充区域检测器，5)用于小角度散射的用户设施和用于同步加速器研究的暂存区，6)包含350个非氢原子的分子的完整结构测定软件和硬件。该设备将用于研究有序无序合金的非平衡过程、金属的实时结晶、不相称材料的畴结构；结构与膜通透性和小肽酶切的关系烯烃分解和聚合催化剂；聚合物薄膜的诱导层序；亚硝基钨配合物的合成高有序多杂环的电化学合成托宾与环己烯金属构象及其配合物的合成聚合物中可逆交联的研究新型半导体五元合金结构的测定Langmuir-Blodgett薄膜中高氧化态有机导体、超导体和有机扩展晶格单层的研究。新的x射线仪器，包括现代最先进的区域探测器和用于复杂结构测定的软件和硬件，将用于新材料结构的研究、生化系统的研究以及各种无机和聚合物化学系统的研究。

The Academic Research Infrastructure Program will fund a new up-to-date X-ray Diffraction Facility for X-ray structure analysis in the areas of materials synthesis, biochemistry, and inorganic and polymer chemistry. The facility, consisting a dedicated single crystal instrument and a polymers/materials/general diffraction instrument, will provide new capabliities at U. Florida not presently available including: 1) a cooling system for single crystal data collection, 2) a high temperature sample holder for fluid samples, 3) a Charge-Coupled-Device area detector system optimized for single crystal diffraction, 4) a high sensitivity gas filled area detector optimized for diffraction of polymers, fibers, and thin films, 5) a user facility for small angle scattering and a staging area for synchrotron studies, 6) software and hardware for full structure determination of molecules containing up to 350 non-hydrogen atoms. The facility will be employed for the study of non-equilibrium processes in order-disorder alloys, real time crystallization in metals, domaain structures in incommensurate materials; correlating structure to membrane permeability and enzymatic cleavage of small peptides; catalysts for olefin metathesis and polymerization; induced layer ordering in polymer thin films; synthesis of tungsten nitrene complexes; electrohemical synthesis of highly ordered polyheterocycles; synthesis of metallaaromatics and complexes of tropyne and cyclooctatrienyne; study of reversible crosslinks in polymers; determination of structure of new pentanary alloys of semiconductors; study of high-oxidation state organic conductors and superconductors and iorganic extended lattice monolayers in Langmuir-Blodgett films. New X-ray instrumentation, including modern state of the art area detectors and software and hardware for structural determination of complex structures, will be employed in a variety of areas for the study of the structure of new materials, the study of biochemical systems, and the study of a va riety of inoganic and polymer chemistry systems.