Department of Chemistry, University of Malakand, Chakdara 18800, Pakistan.
Department of Electrical Engineering, Kwangwoon University Seoul, Seoul 01897, Republic of Korea.
Molecules. 2023 Apr 21;28(8):3635. doi: 10.3390/molecules28083635.
Herein, a novel optical chemosensor, ( = 2, 6-di((E)-benzylidene)-4-methylcyclohexan-1-one), was designed/synthesized and characterized by H-NMR and FT-IR spectroscopy. The experimental observations indicated that is an efficient and selective chemosensor towards Cd, even in the presence of other metal ions, such as Mn, Cu, Co Ce, K, Hg, and Zn in the aqueous medium. The newly synthesized chemosensor, , showed a significant change in the fluorescence emission spectrum upon coordination with Cd. The formation of the Cd complex with was confirmed from the fluorometric response. The 1:2 combination of Cd with was found optimum for the desired optical properties, which was confirmed through fluorescent titration, Job's plot, and DFT calculation. Moreover, showed high sensitivity towards Cd with a very low detection limit (19.25 nM). Additionally, the was recovered and recycled by the addition of EDTA solution that combines with Cd ion and, hence, frees up the chemosensor.
本文设计/合成了一种新型的光学化学传感器（= 2,6-二（（E）-亚苄基）-4-甲基环己烷-1-酮），并通过 H-NMR 和 FT-IR 光谱进行了表征。实验观察表明，即使在存在其他金属离子（如 Mn、Cu、Co、Ce、K、Hg 和 Zn）的水溶液中，也是一种高效且选择性的 Cd 化学传感器。新合成的化学传感器，在与 Cd 配位时，其荧光发射光谱发生了明显变化。通过荧光响应证实了与 Cd 形成配合物。通过荧光滴定、Job 图和 DFT 计算，发现 Cd 与 的 1:2 组合对所需的光学性质是最佳的。此外，对 Cd 具有很高的灵敏度，检测限非常低（19.25 nM）。此外，通过添加与 Cd 离子结合的 EDTA 溶液，可以回收和再循环，从而释放出化学传感器。
