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A Study on the Fluorescence Quenching of Eosin by certain Organic Dyes

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Veröffentlicht/Copyright: 25. September 2009
Zeitschrift für Physikalische Chemie
Aus der Zeitschrift Zeitschrift für Physikalische Chemie Band 222 Heft 7

Abstract

The fluorescence quenching of Eosin by certain dyes has been investigated using steady state technique. The dyes used are Uniblue-A, Acid blue 129, Alizarin, Alizarin red S, Erichrome Black T, Tartrazine, Methyl orange, Methyl red, Acid orange 63, Congo red. The quenching was found to obey the Stern-Volmer equation and the corresponding Stern-Volmer plots were linear in the range of quencher concentration used [0−5×10−5] M. The quenching rate constant (kq) is in the range of 0.85–26.65×1012 M−1s−1. The quenching mechanism is discussed on the basis of the quenching rate constants as well as the reduction potential of the dyes. Rehm-Weller equation is applied for the calculation of free energy change (ΔGet).

Keywords: Eosin; Fluorescence Quenching; Photoinduced Electron Transfer; Dyes
* Correspondence address: Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu620 024, Indien,
Published Online: 2009-9-25
Published in Print: 2008-7-1

© by Oldenbourg Wissenschaftsverlag, München, Germany

Artikel in diesem Heft

  1. Fluorescence Quenching of Meso-Tetrakis(p-Sulfonatophenyl)Porphyrin (TSPP) by certain Organic Dyes
  2. Nonlinear Dynamics in the Uncatalyzed Bromate–Pyrocatechol Reaction
  3. A Study on the Fluorescence Quenching of Eosin by certain Organic Dyes
  4. Structural Investigations on Nanocomposite Mixed Metal Oxide Powders Used in Surface Catalysis
  5. Solvation Behaviour of some Copper (I), Silver (I) and Tetraalkylammonium Salts in Actonitrile + Adiponitrile Mixtures
  6. Mechanisms of Dipolar Ortho/Para-H2O Conversion in Ice
  7. Thermodynamic and Transport Behavior of Binary Liquid Mixtures of 1-Decanol with Hexadecane and Squalane at 298.15, 303.15 and 308.15 K
  8. Experimental and Quantum Chemical Study of the Oxidation Mechanism of CF2CFBr by O2
https://doi.org/10.1524/zpch.2008.5267
Schlagwörter für diesen Artikel
Eosin; Fluorescence Quenching; Photoinduced Electron Transfer; Dyes

Artikel in diesem Heft

  1. Fluorescence Quenching of Meso-Tetrakis(p-Sulfonatophenyl)Porphyrin (TSPP) by certain Organic Dyes
  2. Nonlinear Dynamics in the Uncatalyzed Bromate–Pyrocatechol Reaction
  3. A Study on the Fluorescence Quenching of Eosin by certain Organic Dyes
  4. Structural Investigations on Nanocomposite Mixed Metal Oxide Powders Used in Surface Catalysis
  5. Solvation Behaviour of some Copper (I), Silver (I) and Tetraalkylammonium Salts in Actonitrile + Adiponitrile Mixtures
  6. Mechanisms of Dipolar Ortho/Para-H2O Conversion in Ice
  7. Thermodynamic and Transport Behavior of Binary Liquid Mixtures of 1-Decanol with Hexadecane and Squalane at 298.15, 303.15 and 308.15 K
  8. Experimental and Quantum Chemical Study of the Oxidation Mechanism of CF2CFBr by O2
Heruntergeladen am 23.4.2026 von https://www.degruyterbrill.com/document/doi/10.1524/zpch.2008.5267/html
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