Novel coumarin fluorescent dyes: Synthesis, structural characterization and recognition behavior towards Cu(II) and Ni(II)

Li, Hongqi; Cai, Li; Li, Jinxing; Hu, Yixin; Zhou, Pingping; Zhang, Jiming

doi:10.1016/j.dyepig.2011.05.011

Cited by 83 publications

(30 citation statements)

References 40 publications

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“…The fluorescence properties of coumarin can be tuned by incorporating electron donating and accepting groups at different positions on the basic unit. A study of literature reveals that, electron donor substitution at 7-position along with acceptor at 3-position gives red shifted absorption, because such substitution pattern leads to an effective donor acceptor chromophore [1,19]. The strength of the electron donors and acceptors are also helpful to change the fluorescence properties of the coumarin derivatives.…”

Section: Introductionmentioning

confidence: 96%

“…In the field of functional materials, designing and development of innovative fluorescent molecules for high-tech applications is very demanding [1][2][3][4]. The coumarin derivatives have been one of the most widely studied classes of fluorescent dyes, and probably one of the most frequently used fluorescent compounds [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, synthesis and applications of fluorescent materials happen to be a fruitful research activity [1][2][3][4]. In the field of functional materials, designing and development of innovative fluorescent molecules for high-tech applications is very demanding [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Novel Iminocoumarin Derivatives: Synthesis, Spectroscopic and Computational Studies

Chemate

Sekar

2015

J Fluoresc

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Three novel iminocoumarin derivatives with high quantum yield are synthesized from 3-benzimidazole substituted coumarin and different aromatic aldehydes. The photophysical behavior of the synthesized compounds was studied using UV-visible and fluorescence spectroscopy in polar and non-polar solvents. The compounds show absorption maxima at around 450 nm and emission maxima at around 500 nm. The quantum yields of compounds in dichloromethane and chloroform are more than 0.90. The absorption, emission and quantum yield of compounds are dependent on the polarity of solvents. Along with an intense absorption, these compounds show shoulder absorption peak in the studied solvents. The solvent polarity plots revealed the charge transfer process in the synthesized molecules from donor to acceptor. Density Functional Theory and Time Dependent Density Functional Theory computations have been used to have more understanding of the structural, molecular, electronic and photophysical parameters of the dyes. The dyes were characterized by FT-IR, (1)H NMR, (13)C NMR and mass spectral analysis.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Novel Iminocoumarin Derivatives: Synthesis, Spectroscopic and Computational Studies

Chemate

Sekar

2015

J Fluoresc

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“…Coumarins have been widely used in the fields of biology, medicine, cosmetics and fluorescent dyes [24,25]. The structure of benzopyrone group in the coumarin derivatives has many advantages including high fluorescence quantum yield, large Stokes shift, excellent light stability and low toxicity [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Novel Coumarin Substituted Water Soluble Cyclophosphazenes as “Turn-Off” Type Fluorescence Chemosensors for Detection of Fe3+ ions in Aqueous Media

et al. 2015

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In the present work, 3-[2-(diethylamino)ethyl]-7-oxy-4-methylcoumarin substituted cyclotriphosphazene (4) and cyclotetraphosphazene (5) derivatives were synthesized by the reactions of hexachlorocyclotriphosphazene (1) or octachlorocyclotetraphosphazene (2) with 3-[2-(diethylamino)ethyl]-7-hydroxy-4-methylcoumarin (3) for the first time. The quaternized cationic (6 and 7) and zwitterionic (8 and 9) derivatives of these compounds (4 and 5) were obtained by the reactions of dimethyl sulfate and 1,3-propanesultone, respectively. All newly synthesized cyclophosphazene compounds (4-9) were fully characterized by elemental analysis and general spectroscopic techniques such as FT-IR, (31)P-NMR, (1)H-NMR and MALDI-TOF mass. All these coumarin substituted cyclophosphazene compounds (4-9) were soluble in most of organic solvents and quaternized ionic and zwitterionic compounds (6-9) also showed excellent solubility in water. The fluorescence behaviors of novel cyclophosphazene compounds were investigated in methanol and water solutions. The chemosensor properties of newly synthesized water soluble quaternized ionic and zwitterionic cyclotriphosphazene and cyclotetraphosphazene derivatives (6-9) were investigated in aqueous media. These cyclophosphazene derivatives showed fluorescence chemosensor behavior with high selectivity for Fe(3+) ions in aqueous solution.

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“…In continuation to our efforts on synthesis of trifluoromethyl substituted 2H-chromenes, 43 we have synthesized a series of novel amide functionalized 2H-chromene derivatives by Ritter amidation of primary alcohol using HBF 4 ÁOEt 2 as a mild and versatile reagent. All the products were screened for antimicrobial activity.…”

mentioning

confidence: 99%

Synthesis of novel amide functionalized 2H-chromene derivatives by Ritter amidation of primary alcohol using HBF4·OEt2 as a mild and versatile reagent and evaluation of their antimicrobial and anti-biofilm activities

Reddy

Poornachandra

Dev

et al. 2015

Bioorganic & Medicinal Chemistry Letters

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Novel coumarin fluorescent dyes: Synthesis, structural characterization and recognition behavior towards Cu(II) and Ni(II)

Cited by 83 publications

References 40 publications

Novel Iminocoumarin Derivatives: Synthesis, Spectroscopic and Computational Studies

Novel Iminocoumarin Derivatives: Synthesis, Spectroscopic and Computational Studies

Novel Coumarin Substituted Water Soluble Cyclophosphazenes as “Turn-Off” Type Fluorescence Chemosensors for Detection of Fe3+ ions in Aqueous Media

Synthesis of novel amide functionalized 2H-chromene derivatives by Ritter amidation of primary alcohol using HBF4·OEt2 as a mild and versatile reagent and evaluation of their antimicrobial and anti-biofilm activities

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