US-Switzerland Cooperative Research: Structural Analyses ofZeolites, Molecular Sieves and Related Materials

关于“沸石分子结构分析”的建议 筛和相关材料”之间的博士理查德M。基什内尔的 曼哈顿学院和沃尔特M.研究所的Meier 晶体学，苏黎世，瑞士，是由美国国家科学基金会共同批准 和美国的瑞士国家科学基金会-瑞士 合作科学计划。 解决一个新分子筛的结构往往需要许多 多年来，使用现有技术的组合。 一 一种新的方法（班尼特/Schomaker方法）已经被 成功解析了四种未知分子的结构 筛子 然而，这种方法需要扩展到所有 用于各种骨架材料的间隔基团 化学成分 这项建议将汇集专家 他们可以一起开发一个更强大更有用的程序。 具体来说，研究人员的两个新的磷酸铝框架 材料（KAPPA和ALPO 4 -11）将通过X射线进行表征 粉末衍射数据。 KAPPA结构的知识将 能够比较化学取代的框架， 类似拓扑结构。 一个很好的表征结构， ALPO 4 -11将详细说明 磷酸铝骨架和用于 合成这种材料。 此外，由于没有太多的好 磷酸铝骨架材料的特征结构是 已知，每种新结构都是相当感兴趣的，以便 了解这种新材料家族的特性（包括 化学取代的）具有巨大的潜力， 商业应用。

This proposal on "Structural Analyses of Zeolites, Molecular Sieves and Related Materials" between Dr. Richard M. Kirchner of Manhattan College and Prof. Walter M. Meier of the Institute for Crystallography, Zurich, Switzerland, is jointly approved by NSF and the Swiss National Science Foundation under the U.S.-Switzerland Cooperative Science Program. Solving the structure of a new molecular sieve often takes many years using a combination of presently available techniques. A new approach (the Bennett/Schomaker method) has already been successful in solving the structures of four unknown molecular sieves. However, this method needs to be expanded to work in all space groups for a variety of framework materials of various chemical composition. This proposal would bring together experts who together could develop a more powerful and useful program. Specifically, the researchers of two new aluminophosphate framework materials (KAPPA and ALPO4-11) will be characterized from X-ray powder diffraction data. Knowledge of the KAPPA structure will enable a comparison of chemically substituted frameworks of similar topology to be made. A well characterized structure of ALPO4-11 would provide details of the interaction between the aluminophosphate framework and the organic template used to synthesize this material. In addition, since not many well characterized structures of aluminophosphate framework materials are known, each new structure is of considerable interest in order to understand the properties of this new family of materials (including chemically substituted ones) that have great potential for commercial application.