A highly selective fluorescent sensor for dual detection of Zn2+ and F− based on a new diarylethene

Tian, Zhaoyan; Cui, Shiqiang; Pu, Shouzhi

doi:10.1016/j.tetlet.2016.04.090

Cited by 23 publications

(11 citation statements)

References 42 publications

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“…The result is far below the acceptable limit (7.0 × 10 −6 mol L −1 ) in drinking water defined by WHO. Compared with those of Zn 2+ sensors reported previously, [ 40,69–78 ] the LOD was the lowest (Table 1), indicating that the sensor 1o for Zn 2+ was high sensitive.…”

Section: Resultscontrasting

confidence: 56%

“…[ 19–23 ] So far, many fluorescent sensors based on various fluorescent groups such as fluorophores rhodamine, [ 24,25 ] quinoline, [ 26–30 ] coumarins, [ 31,32 ] heptamethine cyanine, [ 33 ] anthracene, [ 34 ] and others units have been reported for the detection of Zn 2+ . [ 35–41 ] Due to the concentration of Zn 2+ in living things that is about 1.96 × 10 −6 mol L −1 and the World Health Organization (WHO) regulates the concentration of Zn 2+ in drinking water to be 7.0 × 10 −6 mol L −1 , [ 42,43 ] it is still crucial to construct a highly sensitive and selective new fluorescent sensor for the detection of Zn 2+ .…”

Section: Introductionmentioning

confidence: 99%

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A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn²⁺

Qiu

Cui

et al. 2020

J of Physical Organic Chem

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A novel fluorescent sensor on the basis of diarylethene and benzohydrazide unit was successfully synthesized. Its photochromic and fluorescent switching properties have been studied in detail by the irradiation of UV‐visible (UV‐Vis) lights and the stimulus of Zn2+/EDTA. The sensor exhibited high sensitivity and selectivity toward Zn2+ in tetrahydrofuran, which is not interfered by other cations, especially of congener Cd2+. The fluorescence intensity enhanced 84 times along with a 44‐nm blue shift of the emission peak after adding Zn2+. The stoichiometric ratio between the sensor and Zn2+ was 1:1, and the limit of detection (LOD) was calculated as 5.60 × 10−9 mol L−1. Besides, the sensor was applied in the detection of practical water samples with high accuracy.

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Section: Resultscontrasting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn²⁺

Qiu

Cui

et al. 2020

J of Physical Organic Chem

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“…[19][20][21][22][23] In recent years, 6-aminocoumarins have turned out to be a useful platform for developing various fluorescent sensors. 19,[24][25][26][27][28] Along with this rapid development, several research groups started to argue that no direct experimental evidence supports the TICT model in 6aminocoumarins, using both fluorescence lifetime and pressure-dependent fluorescence intensity measurements as their justification. 24,29 To discern the working mechanisms of 6-aminocoumarins and facilitate their rational design for high-performance probes, it is thus essential to resolve the controversy over their emission mechanism.…”

Section: Introductionmentioning

confidence: 99%

Substantial Intramolecular Charge Transfer Induces Long Emission Wavelengths and Mega Stokes Shifts in 6-Aminocoumarins

Liu

Cole

2017

J. Phys. Chem. C

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Coumarins are deployed in numerous bioimaging and biosensing applications. Among various coumarin derivatives, 6-aminocoumarins attract increasing attention for their red-shifted emissions, mega Stokes shifts and significant solvatochromism. These spectral characteristics together with weak emission intensities have historically been ascribed to the formation of the twisted intramolecular charge transfer (TICT) state in 6-aminocoumarins. In this work, we demonstrate that it is actually substantial intramolecular charge transfer (ICT) that is responsible for these fluorescent properties. Based on this new understanding, we re-analyzed the sensing mechanism of a 6-aminocouarmin based fluorescent probe and obtained close agreement with experimental data. Our results lead to a deeper understanding on the photophysics of 6-aminocoumarins and will inspire the rational development of novel fluorescent probes.

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“…Along with this, fluoride sensing is also important in different industrial processes, uranium enrichment process, medical treatment, aluminium refining, organic synthesis, nerve gas attack, etc . In recent times, scientists from all over the world have designed different types of colorimetric and fluorescent chemosensors of fluoride ion ,,,. But gel‐based detection is very less .…”

Section: Introductionmentioning

confidence: 99%

“…But gel‐based detection is very less . In general, using fluorescence‐based sensors, we can easily detect very less quantity of fluoride in the range of 1–100 ppb,, as well as in the higher range 100–1000 ppb ,. But in case of gel‐based sensors, a large amount of fluoride ion is required as we need to convert the whole gel into sol in the presence of fluoride ion.…”

Section: Introductionmentioning

confidence: 99%

A Metallogel Based on a Zwitterionic Spirocyclic Meisenheimer Complex: Sensing of Fluoride Ions in Water and Moisture Content in Organic Solvents

Mohar

2019

ChemistrySelect

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Design and synthesis of stimuli‐responsive materials are highly desired for various practical applications. For this purpose, a picric acid and N,N′‐dicyclohexylcarbodiimide based highly rigid zwitterionic spirocyclic Meisenheimer complex has been applied to produce a metallogel. The Meisenheimer complex does not undergo self‐gelation under any condition. But it forms a stable gel only with Fe3+ ion in a 2:1 ratio in chloroform. Interestingly, the Meisenheimer complex shows bright yellow emission under 366 nm UV light. But the Fe3+ based metallogel does not show any emission under UV irradiation. However, in the presence of fluoride contaminated water, the metallogel surface shows bright yellow emission while checking inside a UV chamber. Thus the non‐fluorescent metallogel was utilized as a sensor of aqueous fluoride ion. The sensor is able to detect aqueous fluoride down to 156 ppb concentration. Like the gel, the dried metallogel solution is also non‐fluorescent in different polar as well as nonpolar organic solvent. But the same solution shows bright yellow emission in the presence of water. The fluorescence intensity was found to increase with an increase in the percentage of water. In this way, the xerogel was utilized as a sensor of undesired water content present in different organic solvents which can detect moisture content with a minimum detection limit of 0.04% for dichloromethane.

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A highly selective fluorescent sensor for dual detection of Zn2+ and F− based on a new diarylethene

Cited by 23 publications

References 42 publications

A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn²⁺

A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn²⁺

Substantial Intramolecular Charge Transfer Induces Long Emission Wavelengths and Mega Stokes Shifts in 6-Aminocoumarins

A Metallogel Based on a Zwitterionic Spirocyclic Meisenheimer Complex: Sensing of Fluoride Ions in Water and Moisture Content in Organic Solvents

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A highly selective fluorescent sensor for dual detection of Zn2+ and F− based on a new diarylethene

Cited by 23 publications

References 42 publications

A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn2+

A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn2+

Substantial Intramolecular Charge Transfer Induces Long Emission Wavelengths and Mega Stokes Shifts in 6-Aminocoumarins

A Metallogel Based on a Zwitterionic Spirocyclic Meisenheimer Complex: Sensing of Fluoride Ions in Water and Moisture Content in Organic Solvents

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Product

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A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn²⁺

A novel diarylethene‐based fluorescence sensor with a benzohydrazide unit for the detection of Zn²⁺