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来自希夫基的新型光开启探头用于高度选择性和敏感的Cu2+离子检测

Lihua Cai¹, Kang Yan², Wenguang Xu²

¹Wuhan Institute of Technology, School of Chemistry and Environmental Engineering, Wuhan 430205, PR China; Environmental and Biological Engineering Department, Wuhan Technology and Business University, Wuhan 430065, PR China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|November 24, 2023

概括

一个新型的光探测器 (L) 可选择性地检测高灵敏度的铜离子 (Cu2+). 这种化增强的光方法提供了一种方便的方法来测试水样中的微量铜.

科学领域:

分析化学分析化学
超分子化学超分子化学
材料科学材料科学材料科学

背景情况:

开发有选择性和敏感的光探针对于检测金属离子至关重要.
铜离子 (Cu2+) 是必不可少的,但在较高度下是有毒的,需要精确的检测方法.
希夫基联体为设计金属离子传感器提供了多功能平台.

研究的目的:

设计和合成一种新型 bis Schiff 基二次氨基联体 (L) 作为光探针.
用探头L.L.来研究对铜离子 (Cu2+) 的选择性和敏感检测.
为了阐明传感机制,并评估探测器的性能,以确定微量铜.

主要方法:

通过凝结和还原反应合成探针L.
使用IR,UV-Vis,LIF,NMR (1H,13C),MS和元素分析进行结构性表征.
光定位,乔布斯图谱和质谱 (MS) 测量以确定结合的固态度和机制.

主要成果:

探头L对无水乙醇中的Cu2+表现出敏感和选择性的光反应.
证实了探针L和Cu2+之间的1:1结合比,复杂化常数为1.28 × 10^8 M^-1.
对Cu2+的检测极限被确定为2.69 × 10^-8 M,使得痕迹分析成为可能.

结论:

开发的光探测器L通过化增强光 (CHEF) 机制有效检测Cu2+.
探测器的增强分子刚性和破坏结合有助于光增强.
探测器L为环境水样中微量铜的方便和有效测试提供了一个有前途的工具.

关键词:

这里是Bis-Schiff的基地.检测铜的检测器光探测器探测器可以发光.

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