Colorimetric and ratiometric fluorescent chemosensor for fluoride ions based on phenanthroimidazole (PI): spectroscopic, NMR and density functional studies

RSC Advances ◽  
2015 ◽  
Vol 5 (47) ◽  
pp. 37935-37942 ◽  
Author(s):  
Ajit Kumar Mahapatra ◽  
Parthasarathi Karmakar ◽  
Jagannath Roy ◽  
Srimanta Manna ◽  
Kalipada Maiti ◽  
...  
Keyword(s):  
Density Functional ◽  
Fluorescent Chemosensor ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Fluoride Ions ◽  
Functional Studies

Phenanthro-imidazole conjugate of biscarbanohyrazone, probe PI was designed, synthesized and characterized for selective detection of fluoride ion.

A newly developed highly selective ratiometric fluoride ion sensor: Spectroscopic, NMR and density functional studies

The Analyst ◽  
2012 ◽  
Vol 137 (5) ◽  
pp. 1247 ◽  
Author(s):  
Arabinda Mallick ◽  
Ujjal Kanti Roy ◽  
Basudeb Haldar ◽  
Sanjay Pratihar
Keyword(s):  
Density Functional ◽  
Fluoride Ion ◽  
Ion Sensor ◽  
Functional Studies

scholarly journals Tetraphenylethylene-Substituted Bis(thienyl)imidazole (DTITPE), An Efficient Molecular Sensor for the Detection and Quantification of Fluoride Ions

Chemosensors ◽  
2021 ◽  
Vol 9 (10) ◽  
pp. 285
Author(s):  
Ranjith Kumar Jakku ◽  
Nedaossadat Mirzadeh ◽  
Steven H. Privér ◽  
Govind Reddy ◽  
Anil Kumar Vardhaman ◽  
...  
Keyword(s):  
Density Functional ◽  
Color Change ◽  
Spectroscopic Studies ◽  
Fluoride Ion ◽  
Fluoride Ions ◽  
Functional Theory ◽  
Naked Eye ◽  
Real World Application ◽  
Molecular Sensor ◽  
Detection And Quantification

Fluoride ion plays a pivotal role in a range of biological and chemical applications however excessive exposure can cause severe kidney and gastric problems. A simple and selective molecular sensor, 4,5-di(thien-2-yl)-2-(4-(1,2,2-triphenylvinyl)-phenyl)-1H-imidazole, DTITPE, has been synthesized for the detection of fluoride ions, with detection limits of 1.37 × 10−7 M and 2.67 × 10−13 M, determined by UV-vis. and fluorescence spectroscopy, respectively. The variation in the optical properties of the molecular sensor in the presence of fluoride ions was explained by an intermolecular charge transfer (ICT) process between the bis(thienyl) and tetraphenylethylene (TPE) moieties upon the formation of a N-H—F− hydrogen bond of the imidazole proton. The sensing mechanism exhibited by DTITPE for fluoride ions was confirmed by 1H NMR spectroscopic studies and density functional theory (DFT) calculations. Test strips coated with the molecular sensor can detect fluoride ions in THF, undergoing a color change from white to yellow, which can be observed with the naked eye, showcasing their potential real-world application.

A Simple and Efficient Schiff Base Derived Chemosensor for Selective Detection of Fluoride Ion

2021 ◽  
Vol 23 (09) ◽  
pp. 646-655
Author(s):  
Fazlur Rahaman ◽  
◽  
Prabhat Gautam ◽  
Priti Gupta ◽  
Subrata Mondal ◽  
...  
Keyword(s):  
Schiff Base ◽  
Limit Of Detection ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Fluoride Ions ◽  
Anion Sensing ◽  
Vis Spectroscopy ◽  
Absorption Studies ◽  
Two Peaks ◽  
High Degree

A new thiazole substituted chemosensor 1 has been designed and synthesized for selective detection of fluoride ions. The chemosensor 1 was characterized by 1H NMR and 13C NMR. The absorption studies of chemosensor in DMF exhibits two peaks at 283 nm and 327 nm. The anion sensing behaviour of chemosensor 1 for various anions (I-, Cl-, Br-, NO3-, HSO4-, PF6-, ClO4-) in DMF were investigated by UV-vis spectroscopy. Chemosensor 1 exhibited high degree of selectivity for fluoride ions over other anions. A good linearity in the range of 16-133 μM with 6.12 μM limit of detection value (LOD) was observed.

scholarly journals A novel fluorescent off–on probe for the sensitive and selective detection of fluoride ions

RSC Advances ◽  
2019 ◽  
Vol 9 (55) ◽  
pp. 32308-32312 ◽  
Author(s):  
Lihong Li ◽  
Min Zhang ◽  
Kaijing Chang ◽  
Yu Kang ◽  
Guodong Ren ◽  
...  
Keyword(s):  
Water Samples ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Ion Detection ◽  
Fluoride Ions ◽  
Real Water Samples

A sensitive and selective fluorescent off–on probe is developed for fluoride ion detection, and its applicability has been demonstrated by determining fluoride ions in real-water samples and toothpaste samples.

Fluorometric selective detection of fluoride ions in aqueous media using Ag doped CdS/ZnS core/shell nanoparticles

2016 ◽  
Vol 45 (2) ◽  
pp. 811-819 ◽  
Author(s):  
Siddhartha Sankar Boxi ◽  
Santanu Paria
Keyword(s):  
Aqueous Media ◽  
Fluoride Ion ◽  
Core Shell ◽  
Selective Detection ◽  
Ion Detection ◽  
Fluorometric Method ◽  
Shell Nanoparticles ◽  
Fluoride Ions ◽  
Core Shell Nanoparticles

In this study, a fluorometric method based on Ag–CdS/Ag–ZnS core/shell nanoparticles is developed for fluoride ion detection.

Construction of a selective electrochemical sensing solid–liquid interface for the selective detection of fluoride ion in water with bis(indolyl)methane-functionalized multi-walled carbon nanotubes

2017 ◽  
Vol 41 (23) ◽  
pp. 14246-14252 ◽  
Author(s):  
Yue Ni ◽  
Hong Liu ◽  
Jian Xu ◽  
Ying Yue ◽  
Shijun Shao
Keyword(s):  
Liquid Interface ◽  
Electrochemical Sensing ◽  
Selective Recognition ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Fluoride Ions ◽  
Multi Walled Carbon Nanotubes ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Walled Carbon Nanotubes

A new solid–liquid interface for selective recognition of fluoride ions in water was fabricated based on the Nbim/MWCNT/GCE.

Coumarin functionalized thiocarbonohydrazones as a new class of chromofluorescent receptors for selective detection of fluoride ion

RSC Advances ◽  
2016 ◽  
Vol 6 (93) ◽  
pp. 90322-90330 ◽  
Author(s):  
Satya Narayan Sahu ◽  
Subrata Kumar Padhan ◽  
Prabhat Kumar Sahu
Keyword(s):  
Colour Change ◽  
Fluoride Ion ◽  
Selective Detection ◽  
Fluoride Ions ◽  
New Class

Thiocarbonohydrazone receptors selectively recognize fluoride ionsviaH-bond interactions and subsequent deprotonation to elicit a distinct visual and fluorescence colour change.

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