STRUCTURE-PROPERTY STUDIES IN FRAMEWORK MATERIALS. Brian H. Toby, Reactor Radiation Division, National Institute of Standards and Technology, Gaithersburg MD 20899 USA and John B. Higgins, Air Products and Chemicals, Allentown PA 18195 USA

Zeolites and related molecular sieves are used in a wide variety of commercial applications: as catalysts for production of fine and commodity chemicals, such as the cracking of petroleum to gasoline; as ion exchange media, used in detergent formulations to reduce hardness of water; and as selective adsorbents, with applications such as the industrial separation of gases. This paper will provide an overview to some of the industrial applications of zeolites and will present examples where structural studies can provide a greater understanding of materials properties.