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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of sol gel science and technology 8 (1997), S. 49-53 
    ISSN: 1573-4846
    Keywords: precursor chemistry ; ferroelectrics ; strontium ; barium ; titanium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reactions between titanium alkoxides Ti(OR)4 (R = Et,i Pr) and strontium β-diketonates Sr(β-dik)2 (β-dik = thd, acac) were investigated. The various Sr-Ti species, Sr2Ti2(β-dik)4 (OR)8, have a 1:1 Sr:Ti stoichiometry and were characterized by elemental analysis, FT-IR and by single-crystal X-ray diffraction for Sr2Ti2(μ3-OiPr)2 (μ-OiPr)4 (OiPr)2(thd)4 (1). The hydrolysis-polycondensation reactions of the various species were investigated and the resulting powders analyzed by light scattering and XRD. While acetone was found to have little influence on the hydrolysis reactions of the Sr-Ti species, polycondensation of Ti(OiPr)4 in neat acetone offers a trinuclear enolate Ti(μ3-O)2(OCMe=CH2)3 (OiPr)5(iPrOH) (4). Comparisons between the Ba-Ti and Sr-Ti systems are given.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of sol gel science and technology 8 (1997), S. 49-53 
    ISSN: 1573-4846
    Keywords: precursor chemistry ; ferroelectrics ; strontium ; barium ; titanium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The reactions between titanium alkoxides Ti(OR)4 (R=Et,iPr) and strontium β-diketonates Sr(β-dik)2 (β-dik=thd, acac) were investigated. The various Sr−Ti species, Sr2Ti2(β-dik)4(OR)8, have a 1∶1 Sr∶Ti stoichiometry and were characterized by elemental analysis, FT-IR and by single-crystal X-ray diffraction for Sr2Ti2(μ3-OiPr)2(μ-OiPr)4OiPr)2(thd)4(1). The hydrolysis-polycondensation reactions of the various species were investigated and the resulting powders analyzed by light scattering and XRD. While acetone was found to have little influence on the hydrolysis reactions of the Sr−Ti species, polycondensation of Ti(OiPr)4 in neat acetone offers a trinuclear enolate Ti(μ3-O)2(OCMe=CH2)3(OiPr)5(iPrOH)(4). Comparisons between the Ba−Ti and Sr−Ti systems are given.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
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