通过一锅反应合成了新型的基于pyr和蒽的席夫碱衍生物P1和A1,分别用作针对Cu 2+和Fe 3+离子的荧光开启传感器,并用于聚集诱导发射(AIE)。P1在CH 3 CN和A1在THF中示出的荧光接通朝向感测的Cu 2+和Fe 3+离子,分别经由通过准分子螯合增强荧光(CHEF)(P1-P1 *和A1-A1 *)的形成。传感器配合物的2:1化学计量比(P1+ Cu 2+和Al + Fe 3+)是基于紫外线-可见吸收滴定法从Job图计算得出的。此外,通过1 H NMR滴定可以很好地确定传感器复合物(P1 + Cu 2+和A1 + Fe 3+)的结合位点,并通过依次添加金属离子和PMDTA获得荧光可逆性。P1 + Cu 2+和A1 + Fe 3+的检出限(LODs)和缔合常数(K a)值通过标准偏差,线性拟合以及从其荧光结合等温线计算传感器响应。更重要的是,发现P1 + Cu 2+和A1 + Fe
Novel pyrene- and anthracene-based Schiff base derivatives as Cu<sup>2+</sup>and Fe<sup>3+</sup>fluorescence turn-on sensors and for aggregation induced emissions
作者:Muthaiah Shellaiah、Yen-Hsing Wu、Ashutosh Singh、Mandapati V. Ramakrishnam Raju、Hong-Cheu Lin
DOI:10.1039/c2ta00574c
日期:——
Novel pyrene- and anthracene-based Schiffbase derivatives P1 and A1 were synthesized via a one-pot reaction and utilized as fluorescence turn-on sensors towards Cu2+ and Fe3+ ions, respectively, and for aggregationinducedemissions (AIEs). P1 in CH3CN and A1 in THF illustrated the fluorescence turn-on sensing towards Cu2+ and Fe3+ ions, respectively, via chelation enhanced fluorescence (CHEF) through
通过一锅反应合成了新型的基于pyr和蒽的席夫碱衍生物P1和A1,分别用作针对Cu 2+和Fe 3+离子的荧光开启传感器,并用于聚集诱导发射(AIE)。P1在CH 3 CN和A1在THF中示出的荧光接通朝向感测的Cu 2+和Fe 3+离子,分别经由通过准分子螯合增强荧光(CHEF)(P1-P1 *和A1-A1 *)的形成。传感器配合物的2:1化学计量比(P1+ Cu 2+和Al + Fe 3+)是基于紫外线-可见吸收滴定法从Job图计算得出的。此外,通过1 H NMR滴定可以很好地确定传感器复合物(P1 + Cu 2+和A1 + Fe 3+)的结合位点,并通过依次添加金属离子和PMDTA获得荧光可逆性。P1 + Cu 2+和A1 + Fe 3+的检出限(LODs)和缔合常数(K a)值通过标准偏差,线性拟合以及从其荧光结合等温线计算传感器响应。更重要的是,发现P1 + Cu 2+和A1 + Fe
From yellow to pink using a fluorimetric and colorimetric pyrene derivative and mercury (II) ions
作者:Daniela Pinheiro、Catherine S. de Castro、J. Sérgio Seixas de Melo、Elisabete Oliveira、Cristina Nuñez、Adrián Fernández-Lodeiro、José Luis Capelo、Carlos Lodeiro
DOI:10.1016/j.dyepig.2014.04.012
日期:2014.11
A systematic series of fluorescence chemosensors with multiple binding sites for Hg(<scp>ii</scp>) based on pyrenyl-functionalized cyclotriphosphazenes and their application in live cell imaging
作者:Süreyya Oğuz Tümay、Aylin Uslu、Hüsniye Ardıç Alidağı、Hasan Hüseyin Kazan、Cansu Bayraktar、Tutku Yolaçan、Mahmut Durmuş、Serkan Yeşilot
DOI:10.1039/c8nj02482k
日期:——
the chemosensors revealed highly selective and sensitive “turn-on” emission enhancement based on the combined effects of chelation-enhanced fluorescence (CHEF), CN isomerization and intramolecular pyrene excimer formation, as well as a color change from yellowish to colorless, which was readily detected by the naked eye. According to the Job plot method, the complexation ratios of chemosensors (1–3)
一系列系统化的荧光化学传感器(1-3),分别具有一个,两个和三个金属结合位点,这些结合点分别基于带有双,四和六-2-(吡啶-1-基亚甲基氨基)苯氧基单元的环三磷腈衍生物,设计,合成并使用UV / Vis和荧光光谱仪评估了它们对金属离子的传感行为。在不存在和存在竞争性金属离子的情况下添加Hg 2+时,基于螯合增强荧光(CHEF),CN异构化和分子内pyr准分子的形成,以及颜色从淡黄色变为无色,这可以通过肉眼很容易地检测到。根据Job plot方法,发现化学传感器(1-3)与Hg 2+的络合比分别为1:1、1:2和1:3(配体:金属),与建议的Hg 2+数量一致。金属结合位点。此外,1 H NMR光谱支持化学传感器(1-3)与Hg 2+的结合模式。化学传感器的络合比从1:1增加到1:1(3–3)使检测极限(LOD)的比例值分别减小,分别为0.223μM,0.114μM和0.050μM。细胞毒性