Abstract An inclusion complex was formed between [3-(4-methylphenyl)-4,5-dihydro-1,2-oxazole-4,5-diyl] bis (methylene) diacetate compound, an isoxazole derivative and methyl-beta-cyclodextrin, the smallest unit of the macrocyclic family. With this newly formed fluorescent probe, the induced photophysical properties of heavy metals were investigated. The complex was thermally analyzed by differential scanning calorimetry – thermogravimetry, Fourier transform infrared, proton nuclear magnetic resonance and two dimensional correlated spectroscopy techniques were used for spectral characterization. Complex formation constant, Gibbs free energy and approximate quenching activation energy values were calculated. Lifetime, bimolecular quenching rate constant values and diffusion rate constant calculations were made and the mechanism of the quenching event with heavy metal effect was trying to be clarified. Whether quenching with Zn is dynamic, and whether or not quenching with Fe is static and diffusion controlled were investigated by the sphere of action static quenching, and by the finite sink approximation models. Highlights A new inclusion complex between OXA and Me-β-CD was obtained. The static action and finite approximation models were used for iron. A dynamic and static quenching mechanism was observed for Zn and Fe, respectively. A weak bound encounter complex formation for iron was suggested.

中文翻译：

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[3-(4-甲基苯基)-4,5-二氢-1,2-恶唑-4,5-二基]双(亚甲基)二乙酸酯和甲基-β-环糊精形成的包合物的动态和静态荧光猝灭水介质

摘要 [3-(4-甲基苯基)-4,5-二氢-1,2-恶唑-4,5-二基]双(亚甲基)二乙酸酯化合物、异恶唑衍生物与甲基-β-环糊精形成包合物。 ，大环族的最小单位。使用这种新形成的荧光探针，研究了重金属的诱导光物理特性。通过差示扫描量热法对复合物进行热分析——热重法、傅里叶变换红外、质子核磁共振和二维相关光谱技术用于光谱表征。计算复合物形成常数、吉布斯自由能和近似淬火活化能值。一生，进行了双分子猝灭速率常数值和扩散速率常数计算，试图阐明重金属效应猝灭事件的机理。通过作用域静态淬火和有限汇近似模型研究了Zn淬火是否是动态的，以及Fe淬火是否是静态的和扩散控制的。亮点 获得了 OXA 和 Me-β-CD 之间的新包合物。静态作用和有限近似模型用于铁。分别观察到 Zn 和 Fe 的动态和静态淬火机制。提出了铁的弱结合遇到络合物的形成。并且通过作用域静态淬火和有限汇近似模型研究了用铁淬火是否是静态的和扩散控制的。亮点 获得了 OXA 和 Me-β-CD 之间的新包合物。静态作用和有限近似模型用于铁。分别观察到 Zn 和 Fe 的动态和静态淬火机制。提出了铁的弱结合遇到络合物的形成。并且通过作用域静态淬火和有限汇近似模型研究了用铁淬火是否是静态的和扩散控制的。亮点 获得了 OXA 和 Me-β-CD 之间的新包合物。静态作用和有限近似模型用于铁。分别观察到 Zn 和 Fe 的动态和静态淬火机制。提出了铁的弱结合遇到络合物的形成。