کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7791923 | 1500651 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detecting Ni(II) in aqueous solution by 3-(2-pyridyl)-[1,2,3]triazolo[1,5-a]pyridine and dimethyl-β-cyclodextrin
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new supramolecular sensitizer for nickel(II) ion in aqueous solution based on a pyridyltriazolopyridine-cyclodextrin inclusion complex is proposed. The inclusion complexation behavior, characterization and binding ability of pyridyltriazolopyridine (PTP) with dimethyl-β-cyclodextrin (DMβCD) has been investigated both in solution and solid state by means of absorption, fluorescence, 1H NMR, DSC, and molecular modeling methods. The stoichiometry of the inclusion complex is 1:1, and the thermodynamic studies indicate that the inclusion of PTP is mainly an entropic driven process. The 2D NMR studies revealed that the pyridyl-triazolopyridine is included by both sides of cyclodextrin which are in good agreement with the docking results. The fluorescence changes upon addition of divalent cations to the inclusion complex indicate a high selectivity and sensitivity for Ni2+ by fluorescence quenching in neutral aqueous solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 107, 17 July 2014, Pages 124-131
Journal: Carbohydrate Polymers - Volume 107, 17 July 2014, Pages 124-131
نویسندگان
Carolina Jullian, Samuel Fernández-Sandoval, Max Rojas-Aranguiz, Horacio Gómez-Machuca, Paola Salgado-Figueroa, Cristián Celis-Barros, Gerald Zapata-Torres, Rosa Adam, Belén Abarca,