【摘要】 将功能化的1,8-萘二甲酰亚胺衍生物与羟基萘甲醛缩合,合成了一种新颖的传感器分子2-羟基-1-奈甲醛缩N-（4-氨基苯基）-1,8-奈二甲酰胺席夫碱（H1）.通过核磁共振氢谱,碳谱和高分辨质谱等方法对H1进行了表征.测定了H1在二甲基亚砜（DMSO）/H₂O（V:V=7:3）溶液中的荧光光谱,其最大荧光发射波长为496nm.H1的溶液在365 nm紫外灯照射下显示黄绿色荧光.H1对Fe³⁺具有荧光-比色双通道检测能力.当在H1的DMSO/H₂O溶液中分别加入Fe³⁺,Ag⁺,Ca²⁺,Ba²⁺,CO²⁺,Ni²⁺,Cd²⁺,Pb²⁺,Zn²⁺,Cu²⁺,Mg²⁺和Hg²⁺等阳离子时,只有Fe³⁺的加入使H1的荧光猝灭并且溶液颜色褪色.抗干扰实验结果表明,这一识别过程不受其它阳离子干扰.H1对Fe³⁺具有较高的检测灵敏度,对Fe³⁺的荧光光谱最低检测限和紫外-可见吸收光谱最低检测限分别为3.04×10^-8和2.71×10⁽-6+mol·L^-1.最后,制备了基于H1的检测试纸,该试纸可以方便快捷地检测水中的Fe³⁺.更多还原

【Abstract】 A novel sensor molecule 2-hydroxyl-1-naldehyde-N-（4-aminophenyl）-1,8-naphthalimide（H1） based on functionalized naphthalimide Schiff Base derivative was synthesized. H1 was characterized by ¹ H NMR, ¹³C NMR and HRMS. Furthermore, its fluorescence properties were studied in dimethyl sulfoxide（DMSO）/H₂ O（V:V=7 : 3） solutions. Its maximum emission wavelength was 496 nm. The solution of H1 has yellow-green fluorescence under the UV lamp（365 nm）. H1 showed fluorescence-colorimetric dual channel identification ability for Fe³⁺. With the addition of various metal ions into the Hl solution, only Fe³⁺ caused the fluorescence of the H1 quenching and the color disappeared. Other cations such as Ag⁺, Ca²⁺, Ba²⁺,Co²⁺,Ni²⁺, Cd²⁺, Pb²⁺, Zn²⁺, Cu²⁺, Mg²⁺ and Hg²⁺ could not induce similar response. The results of anti-disturbance experiment demonstrated that other cations can not interfere in the detection of Fe³⁺. H1 has good sensitivity for Fe³⁺, the fluorescence and UV-Vis detection limits of the Hl for Fe³⁺ are 3.04×10^-8 and 2.71 ×10^-6 mol·L^-1, respectively. Finally, the test strips based on the H1 were prepared, which could conveniently and efficiently detect Fe³⁺ in water.更多还原