Ratiometric fluorescent scaffold giving discrete response towards iodide ion: a combined experimental and DFT study | Zendy

Patil Rahul | Zendy; Tayade Kundan | Zendy; Sahoo Suban K | Zendy; Singh Jasminder | Zendy; Singh Narinder | Zendy; Hundiwale Dilip | Zendy; Kuwar Anil | Zendy

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Ratiometric fluorescent scaffold giving discrete response towards iodide ion: a combined experimental and DFT study

Author(s) -

Patil Rahul,

Tayade Kundan,

Sahoo Suban K,

Singh Jasminder,

Singh Narinder,

Hundiwale Dilip,

Kuwar Anil

Publication year - 2014

Publication title -

journal of molecular recognition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.401

H-Index - 79

eISSN - 1099-1352

pISSN - 0952-3499

DOI - 10.1002/jmr.2392

Subject(s) - fluorescence , iodide , detection limit , chemistry , selectivity , ion , pyridine , reproducibility , aldehyde , photochemistry , inorganic chemistry , chromatography , organic chemistry , physics , quantum mechanics , catalysis

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 1 H 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 × 10 4 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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