zhpsЖурнал прикладной спектроскопииZhurnal Prikladnoii Spektroskopii0514-7506B. I. Stepanov Institute of Physics of the National Academy of Scienceszhps-877Research ArticleАННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙABSTRACTS ENGLISH-LANGUAGE ARTICLESВлияние тяжелых металлов на динамическое и статическое тушение флуоресценции метил-β-циклодекстрина 2,9-диметил-4,7-дифенил-1,10-фенантролином в водных средахEffect of heavy metals on dynamic and static quenching of the fluorescence of the host-guest inclusion complex methyl-β-cyclodextrin by 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline in aqueous mediaAyU.AyUmit

Коджаэли

umurege@kocaeli.edu.tr

Kocaeli

umitay36@hotmail.comУниверситет КоджаэлиDepartment of Chemistry, Kocaeli University202123072021884661670Copyright © Ay U., 20212021Ay U.Ay U.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://zhps.ejournal.by/jour/article/view/877

Комплекс включения образован метил-β-циклодекстрином (Me-β-CD) и наименьшей единицей макроциклического семейства батокупроина — 2,9-диметил-4,7-дифенил-1,10-фенантролином. С помощью этого флуоресцентного зонда исследован эффект тушения флуоресценции тяжелых металлов. Комплекс охарактеризован методами УФ-видимой и флуоресцентной спектроскопии. Рассчитаны комплексная константа (Kb), свободная энергия Гиббса (ΔG0 ), энергия активации тушения (Ea), время жизни (τ), константа скорости бимолекулярной закалки (kq) и константа скорости диффузии (kd), а также уточнен механизм тушения под действием тяжелых металлов.

An inclusion complex was formed with methyl-β-cyclodextrin (Me-β-CD) and the smallest unit of the macrocyclic family of bathocuproine[Ed1], 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline. With this newly formed fluorescent probe, the quenching effect of heavy metals was investigated. Spectral characterization of the complex was performed by UV-visible and fluorescence spectroscopy techniques. The complex formation constant (Kb), Gibbs free energy (ΔG0 ) and approximate quenching activation energy (Ea) values were calculated. Lifetime (τ), bimolecular quenching rate constant (kq) values, and diffusion rate constant (kd) calculations were made, and the mechanism of quenching by the effect of heavy metals was clarified.

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The authors declare that there are no conflicts of interest present.