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An Investigation into the Role of Incorporated Solvent (EtOH/H2O) Molecules on the Structure of Group 2 Metal bis(β- Diketonate) Complexes: Ramifications for CVD Precursors of Electronic Materials.

Published online by Cambridge University Press:  10 February 2011

David J. Otway ,
Henry A. Luten ,
K. M. Abdul Malik ,
Michael B. Hursthouse  and
William S. Rees Jr.
David J. Otway
Affiliation:
School of Chemistry and Biochemistry, School of Materials Science and Engineering, and Molecular Design Institute, Georgia Institute of Technology, Atlanta, GA 30332–0400, U.S.A.
Henry A. Luten
Affiliation:
School of Chemistry and Biochemistry, School of Materials Science and Engineering, and Molecular Design Institute, Georgia Institute of Technology, Atlanta, GA 30332–0400, U.S.A.
K. M. Abdul Malik
Affiliation:
School of Chemistry, Cardiff University, Cardiff, Wales, U.K.
Michael B. Hursthouse
Affiliation:
School of Chemistry, Cardiff University, Cardiff, Wales, U.K.
William S. Rees Jr.
Affiliation:
School of Chemistry and Biochemistry, School of Materials Science and Engineering, and Molecular Design Institute, Georgia Institute of Technology, Atlanta, GA 30332–0400, U.S.A.
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Abstract

The synthesis and characterization of thermally stable, volatile, group 2 element-containing complexes is an important prerequisite for the subsequent use of these compounds in chemical vapor deposition (CVD) of superconducting metal oxides (SMO) and other electronic materials, e.g., YBa2Cu3O7-δ. and CaGa2S4:Ce. The utilization of group 2 metal ethoxide compounds {[M(OEt)2(EtOH)4]n (where M = Ca, Sr or Ba)) as precursors to additional complexes is discussed. For example, the compounds [M(tmhd)(OEt)(EtOH)]n (Htmhd = 2,2,6,6- tetramethylheptane-3,5-dione) may be obtained by reacting one equivalent of Htmhd with the metal bis(ethoxide), and these also may be reacted further with functionalized alcohols, or a second β–diketone, to form heteroleptic compounds. Additionally, the preparation and characterization of some Lewis base adducted complexes have been examined with an emphasis on the role that water plays in their isolation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 415: Symposium BB – Metal-Organic Chemical Vapor Deposition of Electronic Ceramics II , 1995 , 105
Copyright
Copyright © Materials Research Society 1996

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References

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