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Facile Synthesis of Nitrovanillin‐ Appended Porphyrin and Its Utilization as Potent, Recyclable, Naked‐Eye CN − and F − Ion Sensor
Author(s) -
Dar Tawseef Ahmad,
Sankar Muniappan
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701222
Subject(s) - naked eye , porphyrin , deprotonation , ion , chemistry , yield (engineering) , fluorescence , proton nmr , photochemistry , nuclear chemistry , stereochemistry , materials science , detection limit , organic chemistry , chromatography , physics , quantum mechanics , metallurgy
Nitrovanillin porphyrin ( 1 ) was synthesized in good yield and successfully utilized as colorimetric, naked‐eye sensor for toxic CN − and F − ions. The synthesized probe detects CN − and F − ions via anion induced deprotonation, which brings about drastic spectral and colorimetric changes, among the commonly known anions such as OAc − , H 2 PO 4 − , Cl − , Br − , I − , ClO 4 − , HSO 4 − and PF 6 − . The toxic CN − and F − ions interact selectively with the –OH protons of 1 as established via 1 H NMR, UV‐Visible and fluorescence spectroscopic methods. The sensor could detect F − ions ∼1.1 ppm and CN − ions ∼ 1.34 ppm which is very appreciable and promising.