Novel highly selective and sensitive fluorescent sensor for copper detection based on N-acylhydrazone acridone derivative
作者:Mohammed Aarjane、Siham Slassi、Amina Amine
DOI:10.1016/j.molstruc.2019.126990
日期:2020.1
Abstract A new N-acylhydrazone based on acridone (S1) was synthesized by Schiff base condensation of 2-(9-oxoacridin-10-yl)acetohydrazide and salicylaldehyde and studied as selective fluorescence turn-off sensing towards Cu2+ ions in aqueous media. S1 demonstrated fluorescence turn-off sensing towards Cu2+ ions. Conversely, the metal ions K+, Mg2+, Zn2+, Fe2+, Al3+, Pb2+, Cr2+, Cd2+, Ag+, Fe3+, Ba2+
摘要 通过2-(9-oxoacridin-10-yl)乙酰肼和水杨醛的席夫碱缩合合成了一种基于吖啶酮(S1)的新型N-酰基腙,并研究了其作为对水性介质中Cu2+离子的选择性荧光关闭传感。S1 表现出对 Cu2+ 离子的荧光关闭感应。相反,金属离子 K+、Mg2+、Zn2+、Fe2+、Al3+、Pb2+、Cr2+、Cd2+、Ag+、Fe3+、Ba2+、Hg2+、Mn2+、Co2+ 和 Ni2+ 仅对系统的荧光产生轻微的降低。S1–Cu2+ 配合物的结合比由 Job plot 确定为 1:2。此外,S1-Cu2+ 复合物在不同的铜反离子存在下表现出良好的荧光关闭。此外,S1对Cu2+离子的检测限为0.80 μM,足以感知U内生物系统和水体中的Cu2+。