New fluorescent chemosensor based on quinoline and coumarine for Cu2+

Jiang, Z. H.; Lv, Hong‐Shui; Zhu, Jian; Zhao, Bao‐Xiang

doi:10.1016/j.synthmet.2012.09.013

Cited by 29 publications

(12 citation statements)

References 28 publications

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“…Chemosensor based upon 8-hydroxyquinoline and coumarin fluorophore 32 ( Figure 30) exhibited strong emission sensitivity for Cu 2 + ions in the advent of other cations. [60] The free compound 32 has revealed a weak fluorescence emission at the wavelength of 460 nm with the excitation at 421 nm because of the PET phenomenon. With increasing the concentration of Cu 2 + , enhancement in emission intensity of about 13-fold has been detected because of inhibition of PET phenomenon.…”

Section: Fluorescent Sensors For Cu 2 + Ionsmentioning

confidence: 99%

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

Rohini

Paul

Luxami

2020

The Chemical Record

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Among various known hydroxyquinolines, 8-hydroxyquinoline (8-HQ) is the most prevalent moiety due to excellent property for the formation of the complex with different metal ions and anions, and utilized in a wide variety of applications in pharmacological and medicinal fields. 8-Hydroxyquinoline moiety and its analogues acts as fluorophoric ligands on complex formation with alkali and alkaline as well as transition metal ions and anions, thus, considered as an ideal building block in metallo-supramolecular chemistry for recognition, separation, and quantitative investigation of cations. 8-Hydroxyquinoline moiety is also used in various applications for the advancement of novel fluorescent chemosensors in a wide variety of areas viz., material chemistry, bioorganic chemistry, molecular imaging, analytical chemistry, molecular recognition, medical and biological science communities. The present review emphasises on the progress of sensing properties of 8-HQ centred small-molecule fluorescent chemosensors towards several metal ions viz.

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Section: Fluorescent Sensors For Cu 2 + Ionsmentioning

confidence: 99%

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

Rohini

Paul

Luxami

2020

The Chemical Record

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“…Buradaki verilerden bağlanma sabiti (Ka) aşağıdaki eşitlik kullanılarak hesaplanmış olup 1.95x10 4 M -1 olarak bulunmuştur. (Jiang et al, 2012).…”

Section: Job's Plot Uygulaması Bağlanma Sabiti Ve Tayin Alt Sınırınıunclassified

A New, Colorimetric and Fluorescent Chemosensor for The Selective Detection of Fe2+ in Aqueous Media

Özdemir¹

2018

AKU-J. Sci. Eng.

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Son zamanlarda, kolorimetrik ve floresan sensörler, sulu ortamdaki ağır ve geçiş metal iyonlarının duyarlı ve seçici olarak tayin çalışmalarında düşük maliyet, kolay kullanım, yüksek performans, karmaşık olmayışı, test kiti olarak hazırlanma gibi avantajlar sağladıkları için önemli derecede ilgi çekmiştir. Bu çalışmada, kumarin temelli yeni bir kemosensör sentezlenmiş ve elementel analiz, FT-IR, Tandem kütle, 1 H NMR ve 13 C NMR spektroskopileri kullanılarak karakterize edilmiştir. Daha sonra, sensör C1'in seçicilik ve duyarlılık özelliği, biyolojik ve çevresel açıdan öneme sahip bazı metal iyonlarına karşı DMSO-H2O (v/v, 2:1) ortamında araştırılmıştır. UV-vis absorpsiyon ve floresan deneylerinden elde edilen sonuçlar, kemosensör C1'in sadece demir (II) iyonlarına yönelik seçicilik ve duyarlılık gösterdiğini ortaya çıkarmıştır.

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“…Coumarins are also used in flavoring food and in cosmetic products such as fragrances [10,11]. These compounds are also characterized by high photoluminescence quantum yields and can therefore be used as fluorescent chromophores for various applications [12]. Recently, heterocyclic fluorescent compounds have been used in several research fields such as molecular probes for biochemical research [13], emitters for electroluminescent devices [14], fluorescent probes for heavy metal sensing [15], molecules exhibiting biological activities [16] or active layers for photovoltaic applications [17].…”

Section: Introductionmentioning

confidence: 99%

Mono vs. Difunctional Coumarin as Photoinitiators in Photocomposite Synthesis and 3D Printing

et al. 2020

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This work is devoted to investigate three coumarin derivatives (Coum1, Coum2, and Coum3), proposed as new photoinitiators of polymerization when combined with an additive, i.e., an iodonium salt, and used for the free radical polymerization (FRP) of acrylate monomers under mild irradiation conditions. The different coumarin derivatives can also be employed in three component photoinitiating systems with a Iod/amine (ethyl 4-dimethylaminobenzoate (EDB) or N-phenylglycine (NPG)) couple for FRP upon irradiation with an LED @ 405 nm. These compounds showed excellent photoinitiating abilities, and high polymerization rates and final conversions (FC) were obtained. The originality of this work relies on the comparison of the photoinitiating abilities of monofunctional (Coum1 and Coum2) vs. difunctional (Coum3) compounds. Coum3 is a combined structure of Coum1 and Coum2, leading to a sterically hindered chemical structure with a relatively high molecular weight. As a general rule, a high molecular weight should reduce the migration of initiating molecules and favor photochemical properties such as photobleaching of the final polymer. As attempted, from the efficiency point of view, Coum3 can initiate the FRP, but a low reactivity was observed compared to the monofunctional compound (Coum1 and Coum2). Indeed, to study the photochemical and photophysical properties of these compounds, different parameters were taken into account, e.g., the light absorption and emission properties, steady state photolysis, and fluorescence quenching. To examine these different points, several techniques were used including UV-visible spectroscopy, real-time Fourier Transform Infrared Spectroscopy (RT-FTIR), fluorescence spectroscopy, and cyclic voltammetry. The photochemical mechanism involved in the polymerization process is also detailed. The best coumarins investigated in this work were used for laser writing (3D printing) experiments and also for photocomposite synthesis containing glass fibers.

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New fluorescent chemosensor based on quinoline and coumarine for Cu2+

Cited by 29 publications

References 28 publications

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

8‐Hydroxyquinoline Fluorophore for Sensing of Metal Ions and Anions

A New, Colorimetric and Fluorescent Chemosensor for The Selective Detection of Fe2+ in Aqueous Media

Mono vs. Difunctional Coumarin as Photoinitiators in Photocomposite Synthesis and 3D Printing

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