Determination of C-13 NMR shifts for carbons Beta and Gamma to oxygen in poly(olefln sulfone)s

John F. Callan, Allan H. Fawcett

    Research output: Contribution to journalArticle

    Abstract

    We have established parameters that enable the prediction of C-13 NMR chemical shifts for carbons beta and gamma to a sulfoxide or sulfone oxygen(s). Carbons beta were found to be moved upfield by similar to 21 ppm and those gamma downfield by similar to 7.7 ppm in chloroform. We tested these parameters by sequentially oxidizing poly(butyl thirane) to its corresponding polysulfone and assigned the new peaks observed in the C-13 NMR on the basis of their proximity to the oxygen atom(s).
    LanguageEnglish
    Pages66-75
    JournalInternational Journal of Polymer Analysis and Characterization
    Volume13
    Issue number1
    DOIs
    Publication statusPublished - Jan 2008

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    Sulfones
    sulfoxide
    Carbon
    Nuclear magnetic resonance
    Oxygen
    Chemical shift
    Chloroform
    Atoms
    polysulfone P 1700

    Cite this

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    abstract = "We have established parameters that enable the prediction of C-13 NMR chemical shifts for carbons beta and gamma to a sulfoxide or sulfone oxygen(s). Carbons beta were found to be moved upfield by similar to 21 ppm and those gamma downfield by similar to 7.7 ppm in chloroform. We tested these parameters by sequentially oxidizing poly(butyl thirane) to its corresponding polysulfone and assigned the new peaks observed in the C-13 NMR on the basis of their proximity to the oxygen atom(s).",
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    Determination of C-13 NMR shifts for carbons Beta and Gamma to oxygen in poly(olefln sulfone)s. / Callan, John F.; Fawcett, Allan H.

    In: International Journal of Polymer Analysis and Characterization, Vol. 13, No. 1, 01.2008, p. 66-75.

    Research output: Contribution to journalArticle

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    AU - Fawcett, Allan H.

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    N2 - We have established parameters that enable the prediction of C-13 NMR chemical shifts for carbons beta and gamma to a sulfoxide or sulfone oxygen(s). Carbons beta were found to be moved upfield by similar to 21 ppm and those gamma downfield by similar to 7.7 ppm in chloroform. We tested these parameters by sequentially oxidizing poly(butyl thirane) to its corresponding polysulfone and assigned the new peaks observed in the C-13 NMR on the basis of their proximity to the oxygen atom(s).

    AB - We have established parameters that enable the prediction of C-13 NMR chemical shifts for carbons beta and gamma to a sulfoxide or sulfone oxygen(s). Carbons beta were found to be moved upfield by similar to 21 ppm and those gamma downfield by similar to 7.7 ppm in chloroform. We tested these parameters by sequentially oxidizing poly(butyl thirane) to its corresponding polysulfone and assigned the new peaks observed in the C-13 NMR on the basis of their proximity to the oxygen atom(s).

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    M3 - Article

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    SP - 66

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    JO - International Journal of Polymer Analysis and Characterization

    T2 - International Journal of Polymer Analysis and Characterization

    JF - International Journal of Polymer Analysis and Characterization

    SN - 1023-666X

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