%0 Journal Article
%T Studies on the Inclusion Behavior of Amphiphilic p-Sulfonatocalix[4]arene with Ascorbic Acid by Spectrofluorometric Titrations
%A Yunyou Zhou
%A Xueping Ding
%A Xiaoli Fang
%A Tao Li
%A Dongbao Tang
%A Qin Lu
%J Optics and Photonics Journal
%P 59-64
%@ 2160-889X
%D 2011
%I Scientific Research Publishing
%R 10.4236/opj.2011.12009
%X 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 <sup>1</sup>H 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  ¦¤ H  and ¦¤S    values were calculated. Meanwhile the proposed interaction mechanism of the inclusion complex was discussed based on <sup>1</sup>H NMR results. The various factors (ionic strength, and surfactants) effecting the inclusion process were examined in detail.
%K P-Sulfonatocalix[4]Arene
%K Ascorbic Acid
%K Fluorescence Spectrometry
%K Inclusion Interaction
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=5512