Ratiometric fluorescent scaffold giving discrete response towards iodide ion: a combined experimental and DFT study |
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| Authors: | Rahul Patil Kundan Tayade Suban K Sahoo Jasminder Singh Narinder Singh Dilip Hundiwale Anil Kuwar |
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| Affiliation: | 1. School of Chemical Sciences, North Maharashtra University, Jalgaon, Maharashtra, India;2. Department of Applied Chemistry, SV National Institute Technology, Surat, Gujarat, India;3. Department of Chemistry, Indian Institute Technology, Ropar, Punjab, India |
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| Abstract: | A novel ratiometric fluorescent receptor (Z)‐2‐(4‐diethylamino]‐2‐hydroxybenzylideneamino) pyridine‐3‐carbaldehyde (3) bearing one phenolic OH and one aldehyde group as recognition sites was synthesized and characterized. The anion recognition behaviour of receptor 3 was evaluated by various spectroscopic (UV‐visible, fluorescence and 1H nuclear magnetic resonance) methods and was validated by computational studies. The receptor showed fast response time, excellent selectivity and reproducibility towards iodide ion detection among the other surveyed anions, with a binding constant of 6.12 × 104 M?1 and a detection limit of 0.24 μM, thus confirming its potential applicability as a fluorescent sensor for iodide Copyright © 2014 John Wiley & Sons, Ltd. |
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| Keywords: | molecular recognition receptor 3 iodide DFT |
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