Key Laboratory of Life-Organic Analysis of Shandong Province, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, PR China.
Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi 716000, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2021 Feb 5;246:118962. doi: 10.1016/j.saa.2020.118962. Epub 2020 Sep 17.
A novel three-dimensional luminescence Cd-MOF sensor with the molecular formula {[(CH)NH] Cd(ptptc)} (complex 1) has been synthesized by using terphenyl-3,3',5,5'-tetracarboxylic acid (Hptptc) and Cd(NO)·4HO under solvothermal conditions. Single crystal X-ray diffraction analysis shows that complex 1 crystallizes in the monoclinic system C2/c space group and consists of one-dimensional channels. Complex 1 exhibits characteristic fluorescence emission (λ = 380 nm) both in solid state and solvents upon excitation at 300 nm. Real-time fluorescence quenching of complex 1 was observed in the fluorescence sensing of acetone vapor and picric acid. Intriguingly, ppm scale detection limit for acetone vapor in air and nano-mole scale detection limit for picric acid in water were observed. Moreover, good reusability and liner/nonlinear relationships were observed in the fluorescent titration.
一种新型的三维发光 Cd-MOF 传感器，其分子式为{[(CH)NH]Cd(ptptc)}（配合物 1），是通过使用均苯三酸（Hptptc）和 Cd(NO)·4HO 在溶剂热条件下合成的。单晶 X 射线衍射分析表明，配合物 1 在单斜晶系 C2/c 空间群中结晶，由一维通道组成。配合物 1 在 300nm 激发下，在固态和溶剂中均表现出特征荧光发射（λ=380nm）。在对丙酮蒸气和苦味酸的荧光传感中，观察到配合物 1 的实时荧光猝灭。有趣的是，在空气中对丙酮蒸气的检测限达到了 ppm 级，在水中对苦味酸的检测限达到了纳摩尔级。此外，在荧光滴定中观察到了良好的可重复性和线性/非线性关系。
