Abstract
The absorption and emission spectral properties of toluidine blue O (TBO) and Meldola's blue (MDB) in the presence of cyclodextrins (CDs) were studied. Formation of 1 : 1 and 1 : 2 (CD-Dye) inclusion complexes were observed with β-CD and γ-CD, respectively. An increase in the emission intensity was noticed in the presence of β-CD due to the formation of 1 : 1 (CD-Dye) inclusion complexes. However, a decrease in the emission intensity was observed in the presence of γ-CD due to the formation of 1 : 2 (CD-Dye) inclusion complexes. Dimerization of dye molecules in the presence of γ-CD lead to a decrease in the emission intensity. The formation constants for the 1 : 1 and 1 : 2 (CD-Dye) inclusion complexes were calculated.
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References
M. L. Bender and M. Komiyama: Cyclodextrin Chemistry, Springer Verlag, Berlin (1978).
J. Szejtli: Cyclodextrins and their Inclusion Complexes, Akademiai Kiado, Budapest (1982).
V. Ramamurthy: Tetrahedron 42, 3753 (1986).
T. Yorozu, M. Hoshino and M. Imamura: J. Phys. Chem. 86, 4426 (1982).
K. Kalyanasundaram: Photochemistry in Microheterogeneous System, Academic Press, New York (1987).
E. Rabinowitch: J. Chem. Phys. 8, 551 (1940).
W. J. Albery, A. W. Foulds, K. J. Hall, A. R. Hillman, R. G. Egdell and A. F. Orchard: Nature 282, 20 (1979).
R. Tamilarasan and P. Natarajan: Nature 224, 292 (1981).
L. Gorton, A. Torstensson, H. Jaegfeldt and G. Johansson: J. Electroanal. Chem. 161, 103 (1984).
L. T. Kubota, F. Gouvea, A. N. Andrade, B. G. Milagres and G. D. O. Neto: Electrochim. Acta 41, 1465 (1996).
B. Persson: J. Electroanal. Chem. 287, 61 (1990).
W. J. Albery, P. N. Bartlett, A. W. Foulds and W. Robert: J. Chem. Soc., Perkin Trans. 2, 794 (1981).
C. Retna Raj and R. Ramaraj: J. Electroanal. Chem. 405, 141 (1996).
K. R. Gopidas and P. V. Kamat: J. Phys. Chem. 94, 4723 (1990).
A. R. Guadalupe, K. E. Liu and H. D. Abruna: Electrochim. Acta 36, 881 (1991).
C. Retna Raj and R. Ramaraj: Chem. Phys. Lett. 273, 285 (1997).
M. S. Chan and J. R. Bolton: Solar Energy 24, 561 (1980).
D. Liu and P. V. Kamat: J. Electrochem. Soc. 142, 835 (1995).
W. G. Herkstroeter, P. A. Martic and S. Farid: J. Am. Chem. Soc. 112, 3583 (1990).
S. Nigam and G. Durocher: J. Phys. Chem. 100, 7135 (1996).
J. R. Lakowicz: Principles of Fluorescence Spectroscopy, Plenum Press, New York (1983).
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Ilanchelian, M., Retna Raj, C. & Ramaraj, R. Spectral Studies on the Cyclodextrin Inclusion Complexes of Toluidine Blue O and Meldola's Blue in Aqueous Solution. Journal of Inclusion Phenomena 36, 9–20 (2000). https://doi.org/10.1023/A:1008085829227
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DOI: https://doi.org/10.1023/A:1008085829227