Fluorescence Enhancement of Polyamine Derivatives of 1,8-Naphthalimide with Transition Metal Ions
Fluorescence Enhancement of Polyamine Derivatives of 1,8-Naphthalimide with Transition Metal Ions
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DOI：
10.1360/cjcp2006.19(6).506.5
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发表时间：
2006-12
影响因子：
1
通讯作者：
Guo-tao Wen;Man-Zhou Zhu;Zhuo Wang;Xiangming Meng;Hui-yuan Hu;Q. Guo
中科院分区：
文献类型：
--
作者：
Guo-tao Wen;Man-Zhou Zhu;Zhuo Wang;Xiangming Meng;Hui-yuan Hu;Q. Guo
合成了一系列用于检测过渡金属离子的荧光化学传感器1-3。在室温下，这些化学传感器在乙腈中没有过渡金属离子的荧光强度被发现是非常弱的，由于有效的分子内光诱导电子转移（PET）的过程。然而，加入过渡金属离子后，化学传感器1-3表现出明显的荧光增强。此外，在Zn 2+和Cd 2+存在下，化学传感器的荧光发射的强度显著增加。以不同多胺为受体的荧光化学传感器对过渡金属离子表现出不同的亲和能力，并通过荧光发射强度的变化来指示受体与金属离子的相互作用。
A series of fluorescent chemosensors 1-3 were synthesized to detect transition metal ions. At the room temperature, fluorescence intensities of these chemosensors in acetonitrile without transition metal ions were found to be very weak, due to the process of the efficient intramolecular photoinduced electron transfer (PET). However, after addition of the transition metal ions, the chemosensor 1-3 exhibits obvious fluorescence enhancement. Moreover, the intensity of the fluorescence emission of chemosensors increases significantly in the presence of Zn2+ and Cd2+. The fluorescent chemosensors with different polyamine as receptors show diverse affinity abilities to the transition metal ions and signal the receptor-metal ion interaction by the intensity change of fluorescence emission.