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    Preparation of a Polyoxotungstate-Based Inorganic-Organic Hybrid Catalyst and the Application in Sulfide Oxidation and Azide-Alkyne Cycloaddition Reactions

    , M.Sc. Thesis Sharif University of Technology Karimi Neyestani, Fatemeh (Author) ; Bagherzadeh, Mojtaba (Supervisor)
    Abstract
    In this study polyoxotungstate-based inorganic-organic hybrid [C272H162N80Cu16.5W36O129Na9] .80.5H2O was synthesized in situ. This inorganic-organic hybrid resulted from the reaction between copper salt and sodium tungstate with the benzimidazole ligand. Combining inorganic-organic hybrid with polyoxotungstate improved the ability of this catalytic system in oxidation and cycloaddition reactions. The resulting product was identified by IR, X-ray diffraction (XRD), elemental analysis (CHNS), inductively coupled plasma (ICP-OES), field emission scanning electron microscope (FE-SEM) and EDX were technique. The catalyst was used in optimal conditions in sulfide oxidation and azide-alkyne...