Isophorone‐boronate ester: A simple chemosensor for optical detection of fluoride anion

Jakku, R, Reddy, E, Trivedi, R, Vardhaman, A, Giribabu, L, Mirzadeh, N and Bhargava, S 2019, 'Isophorone‐boronate ester: A simple chemosensor for optical detection of fluoride anion', Applied Organometallic Chemistry, vol. 33, no. 1, pp. 1-11.

Document type: Journal Article
Collection: Journal Articles

Title Isophorone‐boronate ester: A simple chemosensor for optical detection of fluoride anion
Author(s) Jakku, R
Reddy, E
Trivedi, R
Vardhaman, A
Giribabu, L
Mirzadeh, N
Bhargava, S
Year 2019
Journal name Applied Organometallic Chemistry
Volume number 33
Issue number 1
Start page 1
End page 11
Total pages 11
Publisher John Wiley & Sons
Abstract A highly selective isophorone‐boronate ester based chemosensor, (1), having a dicyanovinyl moiety as a convenient colorimetric probe, has been designed. Different types of anionic analyte such as CH3COO−, ClO4−, Cl−, F−, PF6−, Br− and HSO4− were tested and among them only highly nucleophilic F− anion displayed significant response towards the sensor. Addition of the fluoride anion across the boron atom disrupts the π‐conjugation thereby shifts the absorption wavelength towards the redshift region due to the decrease in the HOMO‐LUMO energy gap and a colour change from yellow to blue is observed under visible light condition. The detection limit of this probe was calculated to be 3.25 × 108 M for fluoride anion. The binding constants and the detection limits of the sensor were calculated using absorption titration studies. The silica gel TLC strips dip‐coated by the chemosensor (1) revealed a colour change from yellow to brick red to naked eye.
Subject Sensor Technology (Chemical aspects)
Keyword(s) boron derivatives
fluoride anion sensing
optical Spectroscopy
DOI - identifier 10.1002/aoc.4688
Copyright notice © 2018 John Wiley & Sons, Ltd.
ISSN 0268-2605
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