Investigation of 2-Hydroxyacetophenone Nicotinic Acid Hydrazone as a Fluoride Sensor
International Journal of Computational and Theoretical Chemistry
Volume 7, Issue 1, June 2019, Pages: 28-34
Received: Jan. 29, 2019; Accepted: Mar. 11, 2019; Published: Mar. 25, 2019
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Noorain Khalifa, Department of Chemistry, CHRIST (Deemed to Be University), Bengaluru, India
Shibin Jasper Thomas, Department of Chemistry, CHRIST (Deemed to Be University), Bengaluru, India
Nithin Kota Vasudeva Upadhya, Department of Chemistry, CHRIST (Deemed to Be University), Bengaluru, India
Sreeja Puthenveettil Balakrishnan, Department of Chemistry, CHRIST (Deemed to Be University), Bengaluru, India
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In the present work, we studied the selective chemosensing behavior of 2- hydroxyacetophenone nicotinic acid hydrazone (H2L) with fluoride anion. Theoretical and experimental tools were deployed to understand the mechanism of sensing. Experimentally, upon the addition of fluoride to H2L, a change in colour was observed. The 1H NMR spectral studies showed a change in electronic environment around the N-H and O-H bonding sites of the receptor. UV visible spectrum confirmed the formation of a new complex and IR spectrum showed the absence of the hydrogen bond donor peaks. Density Functional Theory (DFT) calculations were carried out in ground state and they were found to be in accordance with the experimental results.
Colorimetric Sensor, IR Sensing, Fluoride Anion Recognition, Hydrogen Bonding, DFT Calculations, Acoyl Hydrazones
To cite this article
Noorain Khalifa, Shibin Jasper Thomas, Nithin Kota Vasudeva Upadhya, Sreeja Puthenveettil Balakrishnan, Investigation of 2-Hydroxyacetophenone Nicotinic Acid Hydrazone as a Fluoride Sensor, International Journal of Computational and Theoretical Chemistry. Vol. 7, No. 1, 2019, pp. 28-34. doi: 10.11648/j.ijctc.20190701.15
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