Liu Yaru, Lv Xinxin, Zhang Xiao, Liu Lan, Xie Jingwen, Chen Zhiping
School of Science, North University of China, Taiyuan, Shanxi 030051, China.
School of Science, North University of China, Taiyuan, Shanxi 030051, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2020 Oct 5;239:118497. doi: 10.1016/j.saa.2020.118497. Epub 2020 May 19.
A novel metal-organic complex (MOC) {[Eu(HL)(HO)]·3HO} (1) (HL = 3,3',5,5'-azoxybenzenetetracarboxylic acid) has been successfully constructed, which exhibits a fascinating 2D bilayer network with the 1D open channels and has excellent water, pH and thermal stabilities. Luminescence studies reveal that 1 can detect TNP and CrO ions with high selectivity and sensitivity in aqueous solution, even if there are related interfering substances. And the mechanisms of luminescence recognitions are discussed on the basis of experiments and theoretical calculations. Furthermore, 1 shows excellent photostability and can be repeatedly used in the above two detection systems. Most importantly, 1 can detect TNP and CrO concentration with a good recovery rate in practical application. Therefore, 1 should be a potential dual-functional luminescent sensor for reliable sensing of TNP and CrO in the field.
一种新型金属有机配合物（MOC）{[Eu(HL)(HO)]·3HO}（1）（HL = 3,3',5,5'-偶氮苯四羧酸）已成功构建，它呈现出具有一维开放通道的迷人二维双层网络，并且具有出色的水稳定性、pH稳定性和热稳定性。发光研究表明，即使存在相关干扰物质，1在水溶液中也能以高选择性和灵敏度检测TNP和CrO离子。并基于实验和理论计算对发光识别机理进行了探讨。此外，1表现出优异的光稳定性，可在上述两种检测系统中重复使用。最重要的是，1在实际应用中能够以良好的回收率检测TNP和CrO的浓度。因此，1应该是一种潜在的双功能发光传感器，可在现场可靠地传感TNP和CrO。
