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、生物化学以及无机和聚合物化学领域的X射线结构分析。该设施由一台专用单晶仪器和一台聚合物/材料/通用衍射仪组成，将为美国佛罗里达州大学提供目前尚未提供的新功能，包括：1)用于单晶数据采集的冷却系统，2)用于流体样品的高温样品保持器，3)针对单晶衍射优化的电荷耦合器件区域检测器系统，4)针对聚合物、纤维和薄膜的衍射优化的高灵敏度气体填充区域检测器，5)用于小角散射的用户设施和用于同步加速器研究的中转区，6)用于全结构测定包含多达350个非氢原子的分子的软件和硬件。该装置将用于研究有序无序合金中的非平衡过程，金属中的实时结晶，无公度材料中的主链结构，结构与膜渗透性和小肽的酶促裂解的关联，烯烃歧化和聚合的催化剂，聚合物薄膜中的诱导层有序化，氮化钨配合物的合成，高度有序多杂环的电合成，金属芳香族化合物和托烷炔和环辛三烯配合物的合成，聚合物中可逆交联键的研究，半导体新五元合金结构的测定，高氧化态有机导体和超导体以及朗缪尔-布洛特薄膜中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结构测定的软件和硬件，将被用于各种领域，用于研究新材料的结构，研究生化系统，以及研究各种无机和聚合物化学系统。

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.