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3-d Periodic Packaging: Sodalite, a Model System.

ADA251985

Publication Date	1992
Personal Author	Stucky, G. D.; Srdanov, V. I.; Harrison, W. T.; Gier, T. E.; Keder, N. L.
Page Count	16
Abstract	3-d periodicity of molecular sieve surfaces coupled with the ability to vary pore size, topology and chemical potential of the framework permits considerable latitude in the assembly of confined atomic and molecular arrays. Sodalite, one of the simplest zeolite analogue structures with a 60 atom cage can be synthesized with a broad range of different atoms to give effective cage charges varying from 0 to -6. Non-hydrogen atom clusters of up to 9 atoms and hydrogen atom containing clusters with as many as 17 atoms can be assembled within the cage during synthesis or by -gas phase or ion exchange inclusion. The optical and structural properties of the included clusters can be systematically modified by changes in the cage dimensions and framework electric field. The structure of both the frameworks and the clusters within the cages of sodalite structural analogues can be precisely determined. In addition to new framework compositions with the sodalite structure, approaches to synthesize new classes of materials consisting of semiconductor, metal or molecular clusters confined within open framework structures are discussed.
Keywords	Molecular sieves Ion exchange Periodic variations Phase Structural properties Surfaces Synthesis Topology Optical properties Superlattices Sodalite Zeolites
Source Agency	Non Paid ADAS
NTIS Subject Category	99D - Basic & Synthetic Chemistry
Corporate Authors	California Univ., Santa Barbara. Dept. of Chemistry.
Document Type	Technical Report
Title Note	Technical rept.
NTIS Issue Number	199219
Contract Number	N00014-81-K-0598

3-d Periodic Packaging: Sodalite, a Model System.

3-d Periodic Packaging: Sodalite, a Model System.
ADA251985

Publication Date	1992
Personal Author	Stucky, G. D.; Srdanov, V. I.; Harrison, W. T.; Gier, T. E.; Keder, N. L.
Page Count	16
Abstract	3-d periodicity of molecular sieve surfaces coupled with the ability to vary pore size, topology and chemical potential of the framework permits considerable latitude in the assembly of confined atomic and molecular arrays. Sodalite, one of the simplest zeolite analogue structures with a 60 atom cage can be synthesized with a broad range of different atoms to give effective cage charges varying from 0 to -6. Non-hydrogen atom clusters of up to 9 atoms and hydrogen atom containing clusters with as many as 17 atoms can be assembled within the cage during synthesis or by -gas phase or ion exchange inclusion. The optical and structural properties of the included clusters can be systematically modified by changes in the cage dimensions and framework electric field. The structure of both the frameworks and the clusters within the cages of sodalite structural analogues can be precisely determined. In addition to new framework compositions with the sodalite structure, approaches to synthesize new classes of materials consisting of semiconductor, metal or molecular clusters confined within open framework structures are discussed.
Keywords	Molecular sieves Ion exchange Periodic variations Phase Structural properties Surfaces Synthesis Topology Optical properties Superlattices Sodalite Zeolites
Source Agency	Non Paid ADAS
NTIS Subject Category	99D - Basic & Synthetic Chemistry
Corporate Authors	California Univ., Santa Barbara. Dept. of Chemistry.
Document Type	Technical Report
Title Note	Technical rept.
NTIS Issue Number	199219
Contract Number	N00014-81-K-0598