Abstract
The work studies the effect of intermolecular interactions on the relation between the rate constants of radiative processes and internal intercombination conversion in particlular molecule - solvent systems. The 1-naphthol complexes in binary mixtures with hydrogen bonding and those of coumarin 1 with nitrogen-nitrogen bonding are examined. The Stern - Volmer curves for the complexes with additions of nitromethane are shown to deviate from linearity.
The interaction of coumarin 1 and 1-naphthol with nitromethane was simulated by the INDO/SP method to show that the lower singlet state is associated with nitromethane. The experimentally observed fluorescence band of the coumarin 1 and 1-naphthol molecules belongs to the third singlet state. The quantum yield of fluorescence from the S3 state is decreased by an order of magnitude for the complexes under study. The quantum yield from the lower singlet state in the 1-naphthol - nitromethane complex is decreased by an order of magnitude, while in the coumarin 1 - nitromethane complex - by two orders. It is found that there is a possibility of photoprotonation in the S1 and S2 states for the 1-naphthol molecule along with the foregoing processes of quenching of fluorescence.
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REFERENCES
G. V. Mayer and V. I. Danilova, Quantum Chemistry, Structure, and Photonics of Molecules [in Russian], Izd. Tomsk Gos. Univ., Tomsk, 1984.
V. A. Filov (ed.), Harmful Chemical Substances. Halogen and Oxygen-Containing Organic Matter [in Russian], Khimiya, St. Petersburg, 1994.
F. P. Shaefer, Dye Lasers, Springer-Verlag, New York, 1973.
G. V. Mayer, V. Ya. Artyukhov, and O. K. Basyl’, Electronic Excited States and Photochemistry of Organic Compounds [in Russian], Nauka, Novosibirsk, 1997.
A. J. Gordon and R. A. Ford, The Chemists Companion: A Handbook of Practical Data, Techniques, and References, Wiley Interscience, New York, 1972.
A. N. Terenin, Photonics of Dye Molecules [in Russian], Nauka, Leningrad, 1967.
Peter Wan and Deepak Shukla, Chem. Rev., 93, 571 (1993).
V. Ya. Artykhov and G. V. Mayer, Fiz. Mysl’ in Russia, No. 2, 110 (2002).
S. Nagakura and M. Gouterman, J. Phys. Chem., 881 (1980).
Yu. A. Borisov and Yu. A. Zolotarev, Zh. Fiz. Khim., 76, No.4, 727 (2002).
L. I. Loboda, Spectroscopy and Photoprocesses in Naphthalene Derivatives, Author’s Thesis of Cand. Chem. Sci., TSU, Tomsk, 1989.
V. I. Danilova, L. B. Zubkova, L. G. Filippova, et al., Hydrogen Bonding (collected papers) [in Russian], Nauka, Moscow, 1964.
V. I. Danilova, V. D. Goltsev, and N. A. Prilezhaeva, Izv. Akad. Nauk SSSR, Fiz., 22, 1054 (1958).
C. McGlynn, T. Azumi, and M. Kinoshita, Molecular Spectroscopy of the Triplet State, New Jersey, 1969.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 17–23, January, 2005.
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Zharkova, O.M., Morozova, Y.P. & Artyukhov, V.Y. Special Features of Quenching of Fluorescence in the 1-Naphthol and Coumarin 1 Molecules in Binary Mixtures. Russ Phys J 48, 17–24 (2005). https://doi.org/10.1007/s11182-005-0079-0
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DOI: https://doi.org/10.1007/s11182-005-0079-0