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<p>Selective detection of fluoride and hydrogen sulfate anions by pyrimidine-based fluorescence chemosensor</p><p> </p>

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Title Statement <p>Selective detection of fluoride and hydrogen sulfate anions by pyrimidine-based fluorescence chemosensor</p><p> </p>
 
Added Entry - Uncontrolled Name Jali, Bigyan Ranjan; Veer Surendra Sai University of Technology Burla
Thakur, Soumya R; Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768 018, Odisha, India
Behura, R ; Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768 018, Odisha, India
Behera, S ; Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768 018, Odisha, India
Sayala, Rajesh B; Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768 018, Odisha, India
Barick, Arun K; Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768 018, Odisha, India
S, Ramakrishna D; Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768 018, Odisha, India
DST, India by EMEQ project (No.-EEQ/2019/000091)
 
Uncontrolled Index Term Fluorescence sensor, Pyrimidine-based probe, Binding constant, Colour change, Photo-induced electron transfer
 
Summary, etc. <p style="text-align: justify;">The binding and sensing abilities of pyrimidine based fluorescence chemosensor <strong>L</strong> towards different anions such as F<sup>-</sup>, Cl<sup>-</sup>, Br<sup>-</sup>, I<sup>-</sup>, NO<sub>3</sub><sup>-</sup>, ClO<sub>4</sub><sup>-</sup>, H<sub>2</sub>PO<sub>4</sub><sup>-</sup> and HSO<sub>4</sub><sup>-</sup> have been examined by fluorescence spectroscopy in DMSO-H<sub>2</sub>O (7: 3, v/v). Upon successive addition of various anions to DMSO-H<sub>2</sub>O solutions of <strong>L</strong>;<strong> </strong>quenching in emission fluorescence is observed at 480 nm. Analysis of fluorescence emission changes suggested the formation of 1:1 complex of <strong>L</strong> with the anions. From the fluorescence binding constant data, it is found that <strong>L</strong> form strong complexes with F<sup>-</sup> and HSO<sub>4</sub><sup>-</sup> ions through H-bonding interactions. The selective response of F<sup>-</sup> over other halides and HSO<sub>4</sub><sup>-</sup> amongst other oxo-anions towards <strong>L</strong> may be explained on the basis of photo-induced electron transfer process.</p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-16 16:36:46
 
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http://op.niscair.res.in/index.php/IJCA/article/view/29642
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 59, ##issue.no## 12 (2020): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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http://op.niscair.res.in/index.php/IJCA/article/download/29642/465491250
 
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