NGHIÊN CỨU PHỔ HỒNG NGOẠI CỦA PHẢN ỨNG GIỮA DẪN XUẤT PYRIDIN VỚI IOD TRÊN NỀN POLYETYLEN

Thu Huong Nguyen, Thi Thanh Mai Nguyen, Jens Spanget-Larsen

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    Resumé

    The reaction of 4-methylpyridine and 4-tert-butylpyridine with iodine was studied by FTIR spectroscopy. The reaction was studied in liquid non-polar solvents (CS2, CCl4) and in low density polyethylene. Unlike the situation in the liquid solvents, the main products of the reaction between the pyridine derivatives and iodine in the polyethylene matrix are ionic species. Probably the cavities in the stretched polymer catalyse the ionic reaction. The results of the FTIR spectroscopic study indicate the presence of bis(4-tert-butylpyridinium)iodonium polyiodide. Theoretical calculations using the density function B3LYP/DGDZVP give results consistent with the proposed structure. The reaction of 4-methylpyridine with iodine reveals a complex mechanism of reaction that produces many forms of products (cations, oligomers).
    OriginalsprogVietnamesisk
    TidsskriftVietnam Journal of Chemistry
    Vol/bind49
    Udgave nummer2A
    Sider (fra-til)170-175
    Antal sider6
    ISSN0866-7174
    StatusUdgivet - 15 aug. 2011

    Citer dette

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    title = "NGHI{\^E}N CỨU PHỔ HỒNG NGOẠI CỦA PHẢN ỨNG GIỮA DẪN XUẤT PYRIDIN VỚI IOD TR{\^E}N NỀN POLYETYLEN",
    abstract = "The reaction of 4-methylpyridine and 4-tert-butylpyridine with iodine was studied by FTIR spectroscopy. The reaction was studied in liquid non-polar solvents (CS2, CCl4) and in low density polyethylene. Unlike the situation in the liquid solvents, the main products of the reaction between the pyridine derivatives and iodine in the polyethylene matrix are ionic species. Probably the cavities in the stretched polymer catalyse the ionic reaction. The results of the FTIR spectroscopic study indicate the presence of bis(4-tert-butylpyridinium)iodonium polyiodide. Theoretical calculations using the density function B3LYP/DGDZVP give results consistent with the proposed structure. The reaction of 4-methylpyridine with iodine reveals a complex mechanism of reaction that produces many forms of products (cations, oligomers).",
    keywords = "p-methylpyridine, p-tert-bytulpyridine, iodine, polyethylene, FTIR spectroscopy, N-iodopyridinium polyiodide, bis(pyridine)iodonium polyiodode",
    author = "Nguyen, {Thu Huong} and Nguyen, {Thi Thanh Mai} and Jens Spanget-Larsen",
    year = "2011",
    month = "8",
    day = "15",
    language = "Vietnamesisk",
    volume = "49",
    pages = "170--175",
    journal = "Vietnam Journal of Chemistry",
    issn = "0866-7174",
    publisher = "Vietnam Academy of Science and Technology",
    number = "2A",

    }

    NGHIÊN CỨU PHỔ HỒNG NGOẠI CỦA PHẢN ỨNG GIỮA DẪN XUẤT PYRIDIN VỚI IOD TRÊN NỀN POLYETYLEN. / Nguyen, Thu Huong; Nguyen, Thi Thanh Mai; Spanget-Larsen, Jens.

    I: Vietnam Journal of Chemistry, Bind 49, Nr. 2A, 15.08.2011, s. 170-175.

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskning

    TY - JOUR

    T1 - NGHIÊN CỨU PHỔ HỒNG NGOẠI CỦA PHẢN ỨNG GIỮA DẪN XUẤT PYRIDIN VỚI IOD TRÊN NỀN POLYETYLEN

    AU - Nguyen, Thu Huong

    AU - Nguyen, Thi Thanh Mai

    AU - Spanget-Larsen, Jens

    PY - 2011/8/15

    Y1 - 2011/8/15

    N2 - The reaction of 4-methylpyridine and 4-tert-butylpyridine with iodine was studied by FTIR spectroscopy. The reaction was studied in liquid non-polar solvents (CS2, CCl4) and in low density polyethylene. Unlike the situation in the liquid solvents, the main products of the reaction between the pyridine derivatives and iodine in the polyethylene matrix are ionic species. Probably the cavities in the stretched polymer catalyse the ionic reaction. The results of the FTIR spectroscopic study indicate the presence of bis(4-tert-butylpyridinium)iodonium polyiodide. Theoretical calculations using the density function B3LYP/DGDZVP give results consistent with the proposed structure. The reaction of 4-methylpyridine with iodine reveals a complex mechanism of reaction that produces many forms of products (cations, oligomers).

    AB - The reaction of 4-methylpyridine and 4-tert-butylpyridine with iodine was studied by FTIR spectroscopy. The reaction was studied in liquid non-polar solvents (CS2, CCl4) and in low density polyethylene. Unlike the situation in the liquid solvents, the main products of the reaction between the pyridine derivatives and iodine in the polyethylene matrix are ionic species. Probably the cavities in the stretched polymer catalyse the ionic reaction. The results of the FTIR spectroscopic study indicate the presence of bis(4-tert-butylpyridinium)iodonium polyiodide. Theoretical calculations using the density function B3LYP/DGDZVP give results consistent with the proposed structure. The reaction of 4-methylpyridine with iodine reveals a complex mechanism of reaction that produces many forms of products (cations, oligomers).

    KW - p-methylpyridine

    KW - p-tert-bytulpyridine

    KW - iodine

    KW - polyethylene

    KW - FTIR spectroscopy

    KW - N-iodopyridinium polyiodide

    KW - bis(pyridine)iodonium polyiodode

    M3 - Tidsskriftartikel

    VL - 49

    SP - 170

    EP - 175

    JO - Vietnam Journal of Chemistry

    JF - Vietnam Journal of Chemistry

    SN - 0866-7174

    IS - 2A

    ER -