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- Title
Fluorescence sensors for Cu based on conjugated indole Schiff base.
- Authors
Bu, Juan; Duan, Hongdong; Wang, Xingjian
- Abstract
Two new conjugated Schiff bases were prepared by condensation reactions between indole derivatives and o-phenylenediamine, respectively. The structures of the synthetic compounds were characterized by IR, H NMR, and elemental analysis. And the melting point determination revealed that both compounds have good thermal stability. Their fluorescence measurements indicated that both compounds in solution have excellent performance on fluorescence emission, and the intensity of fluorescence emissions was quenched sharply by adding copper (II) nitrate. And the spectral changes were examined upon addition of various metal ions, such as Cu, Cd, Co, Ni, and Zn. The results indicated that the fluorescence intensity of two compounds quenched dramatically, and the quenching efficiency of Cu was the highest.
- Subjects
COPPER; FLUORESCENCE spectroscopy; CHEMICAL detectors; INDOLE; SCHIFF bases; CHEMICAL preparations industry
- Publication
Research on Chemical Intermediates, 2014, Vol 40, Issue 8, p3119
- ISSN
0922-6168
- Publication type
Article
- DOI
10.1007/s11164-013-1157-5