本文介绍了用于 Cu 2+的新型荧光化学传感器的设计和完整表征。传感器的结构基于查耳酮骨架作为发色单元,二-(2-甲基吡啶)胺(DPA)作为受体部分。合成并充分表征了带有一个或两个查耳酮-DPA 单元的两个系统。 使用几种金属离子进行紫外-可见滴定,两种化学传感器在添加 Cu 2+后的吸收光谱中都表现出强烈的低色移,表明该金属比其他二价阳离子具有更高的选择性。此外,在相同条件下记录的荧光光谱显示,在存在 Cu 2+的情况下,即使存在其他金属阳离子,也具有更强的猝灭效应,两种化学传感器的结合常数均高于 10 6 M -1且检测限低于微摩尔水平. 准备了带有其中一种化学传感器的纸试纸条,以证明其可能用于检测水性样品中的铜。
本文介绍了用于 Cu 2+的新型荧光化学传感器的设计和完整表征。传感器的结构基于查耳酮骨架作为发色单元,二-(2-甲基吡啶)胺(DPA)作为受体部分。合成并充分表征了带有一个或两个查耳酮-DPA 单元的两个系统。 使用几种金属离子进行紫外-可见滴定,两种化学传感器在添加 Cu 2+后的吸收光谱中都表现出强烈的低色移,表明该金属比其他二价阳离子具有更高的选择性。此外,在相同条件下记录的荧光光谱显示,在存在 Cu 2+的情况下,即使存在其他金属阳离子,也具有更强的猝灭效应,两种化学传感器的结合常数均高于 10 6 M -1且检测限低于微摩尔水平. 准备了带有其中一种化学传感器的纸试纸条,以证明其可能用于检测水性样品中的铜。
Focused Fluorescent Probe Library for Metal Cations and Biological Anions
作者:Hyun-Woo Rhee、Sang Wook Lee、Jun-Seok Lee、Young-Tae Chang、Jong-In Hong
DOI:10.1021/co400034x
日期:2013.9.9
A focusedfluorescentprobelibrary for metalcations was developed by combining metal chelators and picolinium/quinolinium moieties as combinatorial blocks connected through a styryl group. Furthermore, metal complexes derived from metal chelators having high binding affinities for metalcations were used to construct a focusedprobelibrary for phosphorylated biomolecules. More than 250 fluorescent
A sensitive fluorescent chemosensor for anions based on a styryl–boradiazaindacene framework
作者:Ali Coskun、Erhan Deniz、Engin U. Akkaya
DOI:10.1016/j.tetlet.2007.06.021
日期:2007.7
Long wavelength emitting, extended conjugation boradiazaindacenes are novel dyes with considerable ICT character. By appending a dipicolylaminylethylamine group, the parent compound was transformed into a fluorescent dye with a strong chelating ability for Zn(II) ions. The zinc complex which has bright orange fluorescence, reversibly signals anions with very large changes in both the absorption and the emission spectra. The remarkable change in the emission intensity is explained in relation to the electron donating capacity of the substituent on the styryl functionality. (c) 2007 Elsevier Ltd. All rights reserved.
Chalcone-based fluorescent chemosensors as new tools for detecting Cu2+ ions
作者:Liliana J. Gomes、Tiago Moreira、Laura Rodríguez、Artur J. Moro
DOI:10.1016/j.dyepig.2021.109845
日期:2022.1
The design and full characterization of new fluorescent chemosensors for Cu2+ is herein presented. The structure of the sensors is based on a chalcone backbone as the chromophoric unit, with di-(2-picolyl)amine (DPA) as a receptor moiety. Two systems, bearing one or two chalcone-DPA units, were synthesized and fully characterized. UV–Vis titrations with several metal ions were performed and both chemosensors
本文介绍了用于 Cu 2+的新型荧光化学传感器的设计和完整表征。传感器的结构基于查耳酮骨架作为发色单元,二-(2-甲基吡啶)胺(DPA)作为受体部分。合成并充分表征了带有一个或两个查耳酮-DPA 单元的两个系统。 使用几种金属离子进行紫外-可见滴定,两种化学传感器在添加 Cu 2+后的吸收光谱中都表现出强烈的低色移,表明该金属比其他二价阳离子具有更高的选择性。此外,在相同条件下记录的荧光光谱显示,在存在 Cu 2+的情况下,即使存在其他金属阳离子,也具有更强的猝灭效应,两种化学传感器的结合常数均高于 10 6 M -1且检测限低于微摩尔水平. 准备了带有其中一种化学传感器的纸试纸条,以证明其可能用于检测水性样品中的铜。