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Zeolates: A Coordination Chemistry View of Metal-Ligand Bonding in Intrazeolite MOCVD Type Precursors and Semiconductor Nanoclusters

Published online by Cambridge University Press:  15 February 2011

Geoffrey A. Ozin ,
Carol L. Bowes  and
Mark R. Steele
Geoffrey A. Ozin
Affiliation:
Advanced Zeolite Materials Science Group, University of Toronto, Lash Miller Chemical Laboratories, 80 St. George Street, Toronto, Ontario, M5S lAl, Canada
Carol L. Bowes
Affiliation:
Advanced Zeolite Materials Science Group, University of Toronto, Lash Miller Chemical Laboratories, 80 St. George Street, Toronto, Ontario, M5S lAl, Canada
Mark R. Steele
Affiliation:
Advanced Zeolite Materials Science Group, University of Toronto, Lash Miller Chemical Laboratories, 80 St. George Street, Toronto, Ontario, M5S lAl, Canada
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Abstract

Various MOCVD (metal-organic chemical vapour deposition) type precursors and their self-assembled semiconductor nanocluster products [1] have been investigated in zeolite Y hosts. From analysis of in situ observations (FTIR, UV-vis reflectance, Mössbauer, MAS-NMR) of the reaction sequences and structural features of the precursors and products (EXAFS and Rietveld refinement of powder XRD data) the zeolite is viewed as providing a macrospheroidal, multidendate coordination environment towards encapsulated guests. By thinking about the α- and β-cages of the zeolite Y host effectively as a zeolate ligand composed of interconnected aluminosilicate “crown ether-like” building blocks, the materials chemist is able to better understand and exploit the reactivity and coordination properties of the zeolite internal surface for the anchoring and self-assembly of a wide range of encapsulated guests. This approach helps with the design of synthetic strategies for creating novel guest-host inclusion compounds having possible applications in areas of materials science such as nonlinear optics, quantum electronics, and size/shape selective catalysis.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 277: Symposium V – Macromolecular Host-Guest Complexes: Optical, Optoelectronic, and Photorefractive Properties and Applications , 1992 , 105
Copyright
Copyright © Materials Research Society 1992

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References

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