摘要
以1,5-萘二胺和2-甲基吲哚-3-甲醛为原料,设计合成了一个基于席夫碱的荧光探针1,经1H NMR,13C NMR,IR和HRMS表征了探针1的结构.光谱分析实验结果显示,探针1能够高选择性、高灵敏度的检测溶液中隔离子的含量,检出限为0.26μmol·L^(-1).推测识别机理为Cd^(2+)对探针1发生诱导聚集,抑制了C=N旋转异构化,导致荧光增强.
A fluorescent probe based on the Schiff base derived from 1,5-naphthalenediamine and 2-methylindole-3-formaldehyde was designed and synthesized,and its structure was confirmed by 1H NMR,13 C NMR,IR and HRMS.The results of experiments showed that the probe could high selectively and sensitively monitor Cd^(2+)with enhanced fluorescence and the detection limit was 0.26μmol·L^(-1).The recognition mechanism was proposed as that Cd^(2+)induces the aggregation of the probe to inhibit the rotational isomerization of C=N,leads to fluorescence enhancement.
作者
边永军
渠星宇
BIAN Yong-jun;QU Xing-yu(Department of Chemistry and Chemical Engineering,Jinzhong University,Jinzhong 030619,China)
出处
《陕西科技大学学报》
北大核心
2023年第3期93-97,146,共6页
Journal of Shaanxi University of Science & Technology
基金
山西省1331工程重点创新团队建设计划项目(PY201817)
山西省高等学校教学改革创新项目(J2021656,J2020317)
晋中学院教学改革创新项目(Jg202039)。
