Author(s)

Yunyou Zhou, Xueping Ding, Xiaoli Fang, Tao Li, Dongbao Tang, Qin Lu

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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.

P-Sulfonatocalix[4]Arene, Ascorbic Acid, Fluorescence Spectrometry, Inclusion Interaction

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.