In this work, two Schiff base ligands Z2a and Z2b derived from 5-aminoisophthalic acid were synthesized and their structures were characterized by FTIR, 1H(13C) NMR and mass spectrometries. The compounds were investigated for their chemosensor properties towards metal ions [Na+, K+, Al3+, Cr3+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Hg2+ and Pb2+] were examined using colorimetric and spectrophotometric methods (UV-Vis absorption and florescence spectroscopy). Both compounds showed similar sensing properties towards metal ions and they have shown selective sensory properties for Fe+3 and Hg+2 ions. Moreover, the compounds were examined for their fluorimetric sensing abilities for nitroaromatic compounds [4-nitrofenol (NP), nitrobenzene (NB), 2,4-dinitrofenol (DNP), 1,3,5-trinitrophenol (TNP)]. Both compounds showed higher sensitivities for DNP and TNP than NP and NB. Compound Z2b showed the highest sensitivity for DNP with Ksv value of 2.4×104 M-1. Limit of detections for nitroaromatic compounds were calculated and both compounds showed LOD values in micromolar levels. Compound Z2b has shown the lowest LOD value for DNP with 2.77 M.
Schiff base 5-aminoisophthalic acid chemosensor fluorimetric sensor metal ions nitroaromatic compounds
Primary Language | English |
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Subjects | Engineering |
Journal Section | Research Article |
Authors | |
Publication Date | January 1, 2023 |
Acceptance Date | March 21, 2022 |
Published in Issue | Year 2023 Volume: 51 Issue: 1 |
HACETTEPE JOURNAL OF BIOLOGY AND CHEMİSTRY
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