设计,合成和密度函数理论研究的新选择性化学传感器Pb2的研究
Hamid Hadi1, Gassoumi Bouzid2, Samia Nasr3,4
1Department of Chemistry, Physical Chemistry group, Lorestan University, Khorramabad, Iran.
Heliyon
|October 9, 2023
概括
一个新的色度传感器有效地检测到高灵敏度的离子 (Pb2+). 这种由特定有机化合物合成的化学传感器显示了视觉颜色变化和低检测极限,由理论计算证实.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 计算化学计算化学
背景情况:
- 开发用于重金属检测的新型色度传感器至关重要.
- 离子 (Pb2+) 构成重大环境和健康风险,需要敏感的检测方法.
研究的目的:
- 为了合成和表征一种新的色度对称联结体.
- 调查连接体作为各种金属离子的传感器的有效性,重点是Pb2+.
- 通过使用 DFT 和 QTAIM 来计算检查连接体和 Pb2+ 之间的相互作用.
主要方法:
- 使用UV-Vis光谱仪对金属离子进行色度检测.
- 来自2-基-5-甲基-1,3-二甲基和2-氨基-二的新型配体的合成.
- 使用密度函数理论 (DFT) 和分子中的原子量子理论 (QTAIM) 的计算分析,包括CPCM用于溶剂效应.
主要成果:
- 合成的配体对金属离子具有很高的敏感性,对Pb2+的检测极限为0.001ppb.
- 一个明显的颜色变化从无色到黄色表明了Pb2+的存在.
- DFT和QTAIM计算支持实验结果,显示Pb2+结合后电子和光学特性发生显著变化.
结论:
- 新合成的化学传感器 (NC) 在检测Pb2+离子方面具有高效和选择性.
- 实验和理论方法的结合提供了对传感机制的全面了解.
- 这种传感器对环境监测和分析应用需要敏感的Pb2+检测具有前景.
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