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<p class="TitleMain">An efficient naphthalimide based receptor for selective detection of Hg<sup>2+</sup>and Pb<sup>2+</sup>ions<sup> </sup></p><br /><p> </p>

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Title Statement <p class="TitleMain">An efficient naphthalimide based receptor for selective detection of Hg<sup>2+</sup>and Pb<sup>2+</sup>ions<sup> </sup></p><br /><p> </p>
 
Added Entry - Uncontrolled Name Bhosale, Sidhanath Vishwanath; CSIR-Indian Institute of Chemical Technology
Wagalgave, Sopan M; Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
Birajdar, Shailesh S; Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
Patil, Pramod D Jawale; Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, India Department of Chemistry, Deogiri College, Aurangabad 431 005, India
Ingle, Rajita D; Department of Chemistry, Deogiri College, Aurangabad 431 005, India
Pawar, Rajendra P; Department of Chemistry, Deogiri College, Aurangabad 431 005, India
Kobaisi, Mohammad Al; Department of Chemistry and Biotechnology, FSET, Swinburne University of Technology, Hawthorn VIC 3122, Australia
Bhosale, Sheshanath V; School of Chemical Sciences, Goa University, Taleigao Plateau, Goa 403 206, India
Bhosale, Rajesh S; Department of Chemistry, Indrashil University, Kadi, Mehsana 382 740, India
 
Uncontrolled Index Term Benzothiazole, colorimetric, naphthaleneimide, pyrrolidine, sensor
 
Summary, etc. <p class="Abstract" style="text-align: justify;">Naphthalimide based receptor <strong>1</strong> with N-substituted benzothiazole and pyrrolidine subunit is designed, synthesized, and characterized using FT-IR,<sup>1</sup>H and <sup>13</sup>C NMR spectroscopy and mass spectrometry techniques. The receptor <strong>1</strong> exhibits prominent optical response for Hg<sup>2+</sup>and Pb<sup>2+</sup>ions allowing the detection of these ions in acetonitrile (ACN). The formation of the receptor <strong>1</strong>:cation complexes have been investigated using UV-Vis and fluorescence emission titration. Further, the selectivity of the receptor <strong>1</strong>towards Hg<sup>2+</sup>and Pb<sup>2+</sup> ions on the presence of various interfering cations such as Mg<sup>2+</sup>, Ba<sup>2+</sup>, Ni<sup>2+</sup>, Co<sup>2+</sup>, Cu<sup>2+</sup>, Ag<sup>2+</sup>, Fe<sup>2+</sup>, Fe<sup>3+</sup>and Cr<sup>3+</sup> has been confirmed by UV-Vis and fluorescence spectroscopy. The binding constant between receptor <strong>1</strong> and Hg<sup>2+ </sup>and Pb<sup>2+</sup> was estimated by Benesi-Hildebrand plot and equations. The binding constants have been found to be <em>K</em><sub>a</sub>= 3.43286 ´ 10<sup>−6</sup> and <em>K</em><sub>a</sub>= 2.84079 ´ 10<sup>−6</sup> M for Hg<sup>2+</sup> and Pb<sup>2+</sup>, respectively. The limit of detection (LOD) for Hg<sup>2+</sup>and Pb<sup>2+</sup>by receptor <strong>1</strong>are down to 7.44 ´ 10<sup>−10</sup> M and 1.26 ´ 10<sup>−9</sup> M, respectively. In addition, Job’s plot analysis reveals 1:2 binding stoichiometry between the receptor <strong>1</strong> and Pb<sup>2+</sup> and Hg<sup>2+</sup> cations.</p><p style="text-align: justify;"> </p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section B (IJC-B)
2021-11-01 12:34:15
 
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http://op.niscair.res.in/index.php/IJCB/article/view/31793
 
Data Source Entry Indian Journal of Chemistry -Section B (IJC-B); ##issue.vol## 60, ##issue.no## 10 (2021): Indian Journal of Chemistry- Section-B, (IJCB)
 
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