Abstract
New heterotrimetallic isopropoxides of the types {M2(OPr-i)9}M1{M11(OPr-i)5} (M = Zr, Sn(IV); M′ = Sr, Ba; M″ = Ti, Sn(IV)) and {Sn2(OPr-i)9}Sr{Al(OPr-i)4} have been synthesised for the first time by the single-pot reactions of metal isopropoxides (e.g., M1(OPr-i)2 (M′ = Sr, Ba), Ti(OPr-i)4, Sn(OPr-i)4.i-PrOH, or Al(OPr-i)3) in the desired molar ratios in refluxing benzene. All of these novel derivatives have been characterised by elemental analyses, molecular weight measurements, and spectroscopic [IR, NMR (1H, 13C, 27A1, 119Sn)] studies. Reactions of the derivative {Zr2(OPr-i)9}Ba{Sn(OPr-i)5} with alcohols (Me3CCH2OH and Me3COH) have been carried out to shed light on its possible structural features.
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