کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1238800 968954 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on the inclusion behavior of p-sulphonatocalix[4]arene with 9-amino-acridine by spectrofluorometric titrations
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Study on the inclusion behavior of p-sulphonatocalix[4]arene with 9-amino-acridine by spectrofluorometric titrations
چکیده انگلیسی

Spectrofluorometric titrations have been performed to investigate the inclusion behavior of p-sulphonatocalix[4]arene (SC4A) and 9-amino-acridine (AA) in citrate buffer solution (pH 5.92). It was found that the fluorescence intensity of AA quenched regularly upon the addition of SC4A. The proposed interaction mechanism between SC4A and AA indicates that AA partially goes into the cavity of SC4A with the help of strong electrostatic interaction and hydrogen bonding, which formed by the protonated N atom and the amino groups of AA bonding with sulphonyl groups of SC4A, respectively. The inclusion ratio was 1:1 and the inclusion constant was 1.84 × 105 L mol−1 at 25.0 °C.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 63, Issue 2, February 2006, Pages 423–426
نویسندگان
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