Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 40138-16-7, Name is (2-Formylphenyl)boronic acid, SMILES is O=CC1=CC=CC=C1B(O)O, in an article , author is Boali, Abdulmalik Adil, once mentioned of 40138-16-7, Name: (2-Formylphenyl)boronic acid.
Synthesis and selective colorimetric detection of iodide ion by novel 1,5-naphthyridine-based conjugated polymers
A highly selective colorematric detection of iodie ion based on 1,5-naphthyridine-based conjugated polymers (CPs) is reported. The synthesis of these new conjugated copolymers poly(2-(2-methoxyphenoxy)-6-(3-methoxyphenoxy)-1,5-naphthyridine)-p-bisdodecyloxyphenylene vinylenes) (P1) and poly(2-(2-methoxyphenoxy)-6-(3-methoxyphenoxy)-1,5-naphthyridine)-p-bis-2-(ethyl-hexyloxy)-phenylene vinylenes) (P2) was achieved by the Horner-Emmons polymerization reaction. These polymers were characterized by H-1 NMR, FT-IR and UV-vis spectroscopy and their bandgaps (P1 = 2.35 eV; P2 = 2.25 eV) were determined by cyclic voltammetric measurements. In colorimetric sensing, both these polymers can selectively detect iodide ion in a mixture of water and THE in the presence of a wide range of competing ions including F-, Cl-, Br-, NO3-, CH3COO-, SO4-2, SO3-2, S2O3-2 and CN- and exhibit high sensitivity with LOD of 6.5 and 4.5 ppm, respectively. In the sensing protocol, the addition of aqueous solution of iodide salts to the colorless solution of polymers resulted in bare-eye color change from colorless to yellow, along with concomitant changes in the UV-vis spectra. The time dependent and concentration based studies revealed that P2 was more sensitive and quick in response as compared to P1. (C) 2018 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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Reference:
1,8-Naphthyridine – Wikipedia,
,1,8-Naphthyridine | C8H6N2 – PubChem