Jang Hyo Jung, Kang Ji Hye, Yun Dongju, Kim Cheal
Department of Fine Chemistry, Seoul National University of Science and Technology (SNUT), Seoul, 139-743, South Korea.
J Fluoresc. 2018 May;28(3):785-794. doi: 10.1007/s10895-018-2240-5. Epub 2018 May 23.
A new multifunctional chemosensor 1, (E)-2-(((2-hydroxynaphthalen-1-yl)methylene)amino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, based on naphtalimide and naphthaldehyde was developed, which showed the fluorescence responses to trivalent metal ions (Ga, Al and Cr). Sensor 1 detected and differentiated selectively trivalent metal ions Ga, Al and Cr by fluorescence enhancement at different emissions. The association constant of Ga-2∙1 complex is the highest one among those of the organic chemosensors reported, to date. The sensing mechanisms for Ga, Al and Cr were explained by UV-vis titrations, Job plots, ESI-mass analyses and theoretical calculations.
基于萘二甲酰亚胺和萘甲醛，开发了一种新型多功能化学传感器1，即(E)-2-(((2-羟基萘-1-基)亚甲基)氨基)-1H-苯并[de]异喹啉-1,3(2H)-二酮，其对三价金属离子（镓、铝和铬）表现出荧光响应。传感器1通过不同发射波长下的荧光增强，选择性地检测和区分三价金属离子镓、铝和铬。Ga-2∙1配合物的缔合常数是迄今为止报道的有机化学传感器中最高的。通过紫外-可见滴定、乔布图、电喷雾电离质谱分析和理论计算，解释了对镓、铝和铬的传感机制。
