Solid State Oxides and Oxyfluorides

9727516新材料的制备是现代固体化学中最具挑战性的问题之一。未来三年的研究目标是以金属氧化物为试剂，从(氟化氢)x吡啶/吡啶/水溶液(150℃，高压罐自压)中合成大量混合金属氧氟化物。“组成空间”方法将建立单独的稳定区域(结晶场)，并使每个研究系统内不同相的选择性结晶成为可能。预期的结构范围从多核团簇到一维链、二维层和三维框架。正在研究的多阳离子前体的水解化学、模板方法以及pH控制的氧合(聚阴离子)和阳离子(聚阳离子)反应化学将促进我们对无机化学的理解。无机固体的设计是提高我们生活水平的材料发展的重要一步。人们建议研究开发无机化学的新方法，与目前可用于计算机、汽车以及化工和石油工业的催化剂相比，产生更复杂的无机固体。***

9727516 Poeppelmeier The preparation of new materials is one of the most challenging problems in modern solid-state chemistry. The research objective over the period of the next three years is to synthesize a large number of mixed metal oxyfluorides prepared from (hydrogen fluoride) x pyridine/pyridine/water solution (150 degrees centigrade, autoclave autogenous pressure) using metal oxides as reagents. The "composition space" approach will establish individual regions of stability (crystallization fields) and enable the selective crystallization of different phases within each system studied. Structures are expected which range from polynuclear clusters to one dimensional chains, two-dimensional layers and three dimensional frameworks. The hydrolytic chemistry of multi-cation precursors, templating methodology, and pH controlled oxolation (polyanions) and olation (polycations) reaction chemistry under study will advance our understanding of inorganic chemistry. %%% The design of inorganic solids is the important step in the development of materials that enhance our living standards. Research is proposed to develop new methodologies for inorganic chemistry leading to more complex inorganic solids compared to those that are presently available for use in computers, automobiles and as catalysts in the chemical and petroleum industry. ***