A new highly effective fluorescent probe for Al^sup 3+^ ions and its application in practical samples

A new 1,8-naphthalimide derivative, N-allyl-4-[3,3'-((2-aminoethyl)azanediyl) -bis(N'-(2-hydroxy-3-methoxybenzylidene)propanehydrazide)]-1,8-naphthalimide (NBPN), was designed, synthesized and evaluated as a chemosensor for Al3+ ion. The structure of probe NBPN was established by single cr...

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Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2017-01, Vol.332, p.273
Main Authors: Wang, Fei, Xu, Yuling, Aderinto, Stephen Opeyemi, Peng, Hongping, Zhang, Han, Wu, Huilu
Format: Article
Language:English
Subjects:
Aluminum
Chemical synthesis
Correlation coefficient
Correlation coefficients
Crystal structure
Data processing
Fluorescence
Ions
Linearity
Metal ions
NMR
Nuclear magnetic resonance
pH effects
Photochemistry
Selectivity
Titration
Water analysis
Water sampling
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Summary:A new 1,8-naphthalimide derivative, N-allyl-4-[3,3'-((2-aminoethyl)azanediyl) -bis(N'-(2-hydroxy-3-methoxybenzylidene)propanehydrazide)]-1,8-naphthalimide (NBPN), was designed, synthesized and evaluated as a chemosensor for Al3+ ion. The structure of probe NBPN was established by single crystal X-ray. Upon addition of different metal ions to the DMF/HEPES buffer (1:1, v/v, pH = 7.4) solution of NBPN, a significant selectivity toward Al3+ over other metal ions was observed. NBPN showed a good linearity with a correlation coefficient (R2) of 0.95 in the concentration range 3-11 µM. The respective detection limit of NBPN and the association constant for Al3+ were calculated to be 3.4 × 10-8 M and 1 × 104 M-1. The stoichiometry and binding mode of probe NBPN with Al3+ were studied by spectroscopic methods of Job plot, UV-vis titration, fluorescence titration, MS and 1H NMR titration and the experimental data indicated 1:1 stoichiometric complex between NBPN and Al3+. Ultimately, NBPN was employed for the detection of Al3+ in practical water samples.
ISSN:1010-6030
1873-2666