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Fluorescence Quenching of DMB by Aniline in Benzene-Acetonitrile Mixture

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The fluorescence quenching of coumarin dye namely 4-(2,6-dibromo-4-methyl-phenoxymethyl)-benzo[h]chromen-2-one [DMB] has been studied by aniline, in a different solvent mixture of benzene (BN) and acetonitrile (AN) at room temperature. The quenching is found to be appreciable and shows positive deviation from linearity in the Stern-Volmer (S-V) plots for all the solvent mixtures. The various rate parameters responsible for fluorescence quenching have been determined using a sphere of action static quenching model and finite sink approximation model. The magnitudes of these rate parameters indicate that positive deviation in the S-V plot is due to both static and dynamic quenching processes.


International Letters of Chemistry, Physics and Astronomy (Volume 65)
A. H. Sidarai et al., "Fluorescence Quenching of DMB by Aniline in Benzene-Acetonitrile Mixture", International Letters of Chemistry, Physics and Astronomy, Vol. 65, pp. 32-36, 2016
Online since:
Apr 2016

[1] Mortazavi M. A et al. Second-order nonlinear optical properties of poled Coumaromethacrylate copolymers, Appl. Phys. B: Lasers Opt, 53 (1991) 287–295.

[2] Duarte F. J, Hillman L. W, Dye laser principles, with applications, Academic Press Inc.: San Diego, CA, (1990).

[3] Kohjiro Hara et al. Design of new coumarin dyes having thiophene moieties for highly efficient organic-dye-sensitized solar cell, New J. Chem. 27 (2003) 783–785.

DOI: 10.1039/b300694h

[4] Amaresh Mishra et al. Metal-free organic dyes for dye-sensitized solar cells: From Structure: Property relationships to design rules, Chem. Int. Ed. 48. (2009) 2474–2499.

DOI: 10.1002/anie.200804709

[5] He Zhao et al. Hydrazide-containing inhibitors of HIV-1 integrase, J. Med. Chem. 40 (1997) 242-249.

[6] C. Kontogiorgis, D. Hadjipavlou, Biological evaluation of several coumarin derivatives designed as possible anti-inflammatory/antioxidant agents, J. Enzym. Inhib. Med. Chem. 18(2003)63-69.

DOI: 10.1080/1475636031000069291

[7] J. Thipperudrappa, S.M. Hanagodimath, Fluorescence quenching of 1, 4-bis [2-(2-methyl phenyl) ethenyl]-benzene by aniline in benzene-acetonitrile, International journal of Life science and Pharma research. 3 (2013).

[8] P. K Behera, A. K. Mishra, Static and dynamic model for 1-napthol fluorescence quenching by CCl4 in dioxane-acetonitrile mixtures, J. Photochem. Photobiol. A: Chem. 7 (1993) 115-118.

[9] Haruo Schizuka, Toshio Saito and Toshifumi Morita, Fluorescence quenching of aromatic molecules by inorganic anions J. Chem. Phy. Lett. 56 (1978) 519-522.

DOI: 10.1016/0009-2614(78)89030-7

[10] Roy. R and Mukherjee.S. Fluorescence quenching of carbozole and indole by Ethylenetrithiocarbonate, J. Chem. Phys. Lett., 140 (1987) 210-214.

DOI: 10.1016/0009-2614(87)80816-3

[11] Murat Acar et al. The fluorescence quenching mechanism of coumarin120 with CdS nanoparticles in aqueous suspension, J. Luminescence, 157 (2015) 10–15.

[12] John Olmsted, Oxygen quenching of fluorescence of organic dye molecules, j. Chem. Phy. Lett. 26 (1974) 33-36.

[13] J.S. Kadadevarmath et al. Static and dynamic model fluorescence quenching of laser dye by carbon tetrachloride in binary mixtures, Spectrochim. Acta Part A. 17 (2014) 630–634.

DOI: 10.1016/j.saa.2013.08.053

[14] H.M. Suresh Kumar et al. Analysis of fluorescence quenching of new indole derivative, by J. Lumin. 116 (2006) 35–42.

[15] J. R. Mannekutla et al. Fluorescence quenching of UVITEX-OB by aniline in alcohols and Alkanes, Spectroscopy Letters. 39 (2006) 321–335.

DOI: 10.1080/00387010600779229

[16] M. Basanagouda et al. Synthesis of some new 4-aryloxmethylcoumarins and examination of their antibacterial and antifungal activities, J. Chem. Sci. 121 (2009) 485–495.

[17] J.M. Frank, S.J. Wawilow, Sphere of action of the extinction phenomena in fluorescent Liquids, Z. Phys. 69 (1931)100-110.

[18] John T. Edward, Molecular volumes and the Stokes–Einstein equation, J. Chem. Edu. 47 (1970).

[19] J. C. Andre, M. Niclause, W. R. Ware, Kinetics of partly diffusion controlled reactions I. Transient and apparent transient effect in fluorescence quenching, Chem. Phys. 28 (1978) 371.

DOI: 10.1016/0301-0104(78)80014-7

[20] Zeng H, Durocher G, Analysis of fluorescence quenching in some antioxidants from nonlinear Stern–Volmer Plots, J. Lumin. 63 (1995) 75-84.

DOI: 10.1016/0022-2313(94)00045-e

[21] J. Keizer, Non-equilibrium statistical thermodynamics and the effect of diffusion On chemical reaction rates, J. Phys. Chem. 86 (1982) 5052–5067.

[22] G.C. Joshi et al. Diffusion-controlled reactions: Transient effects in the fluorescence Quenching of indole and N-acetyl tryptophan amid in water, J. Phys. Chem. 94 (1990) 2908-2914.

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