Optics and Photonics Journal

Volume 1, Issue 2 (June 2011)

ISSN Print: 2160-8881   ISSN Online: 2160-889X

Google-based Impact Factor: 0.76  Citations  h5-index & Ranking

Studies on the Inclusion Behavior of Amphiphilic p-Sulfonatocalix[4]arene with Ascorbic Acid by Spectrofluorometric Titrations

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DOI: 10.4236/opj.2011.12009    4,069 Downloads   8,561 Views  Citations

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ABSTRACT

The aqueous solution of tetrabutyl ether derivatives of p-sulfonatocalix[4]arene (SC4Bu) and ascorbic acid (AA) complex has been studied based on fluorescence and 1H NMR spectroscopic results. It was found that the fluorescence intensity of SC4Bu quenched regularly upon the addition of AA. A 1:1 stoichiometry for the complexation was established and was verified by Job’s plot. The temperature-dependent inclusion constants were calculated, form which Δ H and ΔS values were calculated. Meanwhile the proposed interaction mechanism of the inclusion complex was discussed based on 1H NMR results. The various factors (ionic strength, and surfactants) effecting the inclusion process were examined in detail.

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Y. Zhou, X. Ding, X. Fang, T. Li, D. Tang and Q. Lu, "Studies on the Inclusion Behavior of Amphiphilic p-Sulfonatocalix[4]arene with Ascorbic Acid by Spectrofluorometric Titrations," Optics and Photonics Journal, Vol. 1 No. 2, 2011, pp. 59-64. doi: 10.4236/opj.2011.12009.

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