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Pyridine-2,6-dicarboxamide-based fluorescent sensor for detection of Fe3+ and Hg2+
NOPR - NISCAIR Online Periodicals Repository
View Archive Info| Field | Value | |
| Title |
Pyridine-2,6-dicarboxamide-based fluorescent sensor for detection of Fe3+ and Hg2+
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| Creator |
Kumar, Gajendra
Kumar, Anuroop Singh, Netra Pal |
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| Subject |
Chemosensor
Binding constant LOD Pyridine-2,6 dicarboxamide Quenching Thiadiazole |
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| Description |
970-975
Novel and efficient fluorescent probes having N2, N6-bis(5-Mercapto-1,3,4-thiadiazol-2-yl)pyridine-2,6-dicarboxamide (TPDC) are synthesized by the condensation reaction between pyridine-2,6-dicarboxylic acid and amino derivatives of thiadiazoles. The novel fluorescent probe TPDC exhibits a highly sensitive and selective response to Fe3+ and Hg2+ ions in HEPES buffer solution showing the detection limit to be 0.49 šM and 0.0066 šM, respectively. The binding stoichiometry of TPDC with Fe3+ and Hg2+ have been estimated by Jobs plot and found to be 1:1. These have been confirmed by MS spectra. The stability constant of the fluorescent probe with Fe3+ and Hg2+ has been determined by the BenesiāHildebrand equation. The binding constant for Fe3+ and Hg2+ ions are 2.54 Ć 101 Mā1 and 0.18 Ć 102 Mā1, respectively. The crystallinity of compounds have also been calculated by XRD spectra and found to be 66.37%. |
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| Date |
2023-09-19T05:02:43Z
2023-09-19T05:02:43Z 2023-09 |
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| Type |
Article
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| Identifier |
2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/62513 https://doi.org/10.56042/ijc.v62i9.5375 |
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| Language |
en
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| Publisher |
NIScPR-CSIR,India
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| Source |
IJC Vol.62(09) [September 2023]
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