A Novel Salicylaldehyde Schiff-base Fluorescent Probe for Selective Detection of Cu2+Ion

• 作者: LI Yuan-Da KUANG Jin-Hao QIN Hai-Bo LIU Ke-Xiang FAN Xu LI Zhong-Yan YUAN Lin
• 来源期刊: 结构化学
• 年，卷（期）: 2022,（3）
• 页码范围: 132-136
• 页数: 5页
• 语种: 英文
• DOI: 10.14102/j.cnki.0254-5861.2011-3288

摘要

A novel Schiff-base fluorescent probe 6,6'-((1E,1'E)-(ethane-1,2-diylbis(azaneylylidene))bis-(methaneylylidene))bis(3-(diethylamino)phenol)(L)was derived from the 2:1 M condensation of 4-(diethylamino)-2-hydroxybenzaldehyde with ethylenediamine and characterized by 1H NMR,13C NMR and FT-IR spectroscopies.The results of spectral analysis showed that the probe L is selective and sensitive to Cu2+.The detection limit of L is found to be 19 nmol·L-1.There is a good linear relationship between the fluorescence intensity of probe L and the concentration of Cu2+in the range of 0 to 20 μmol-L-1.X-ray crystal structure of the L-Cu2+complex and the Job plot revealed a 1:1 L-Cu2+identification.