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<p><strong>Cancellation of Contact Quenching : A Simple Concept for Selective Chemosensing of Basic Fluoride and Acetate Anions</strong><strong></strong></p>

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Title Statement <p><strong>Cancellation of Contact Quenching : A Simple Concept for Selective Chemosensing of Basic Fluoride and Acetate Anions</strong><strong></strong></p>
 
Added Entry - Uncontrolled Name Mashraqui, Sabir H. ; Dept. of Chemistry, university of Mumbai, Vidyanagari, Santacruz (E) Mumbai-400098
Ghorpade, Sushil S
Khan, Tabrez
Sharma, Brijesh M
 
Uncontrolled Index Term Chemosensor, Cancellation of contact quenching, Fluoride, Acetate, UV-Visible, Fluorescence.
 
Summary, etc. <p>A weakly fluorescent acid-base pair formed by reacting fluorescent acridine orange with the quencher picric acid is reported for the detection of basic fluoride and acetate anions. Deprotonation by these anions causes disengagement of the fluorescent acridine orange from the quencher, picric acid. This phenomenon cancels the quenching existing in the native probe, thereby allowing for the optical signalling of fluoride and acetate anions by color modulation as well fluorescence switch-on response. Anions such as Br<sup>-</sup>, I<sup>-</sup>, Cl<sup>-</sup>, NO<sub>3</sub><sup>-</sup>, SCN<sup>-</sup>, HSO<sub>4</sub><sup>-</sup>, and H<sub>2</sub>PO<sub>4</sub><sup>-</sup> offer no detectable interferences even in excess concentrations.<em></em></p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry (IJC)
2022-11-14 15:22:20
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJC/article/view/63424
 
Data Source Entry Indian Journal of Chemistry (IJC); ##issue.vol## 61, ##issue.no## 11 (2022): Indian Journal of Chemistry-(IJC)
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJC/article/download/63424/465609445