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Spectral and luminescence properties and photochemical transformations of 7,7,9-trimethyl-6,7-dihydrofuro[3,2-f]quinoline

  • Photochemistry
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Abstract

Spectral, luminescent, and photochemical properties of 7,7,9-trimethyl-6,7-dihydrofuro[3,2-f]quinoline (FDHQ) have been studied in hexane, alcohols, and water. Unlike 1,2-dihydroquinolines without the furo substituent, the fluorescence quantum yields for FDHQ in water and methanol are high (0.4 and 0.2, respectively), thereby indicating a difference in routes of excitation energy degradation in these compounds. The regularities in the FDHQ phototransformations have been studied by steady-state photolysis. The composition and the yield of final products depend on the presence or absence of oxygen in the system to a higher extent than on the solvent nature. This indicates the participation of the triplet excited state in the photo-chemical reactions in oxygen-free systems.

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Authors and Affiliations

  1. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, ul. Kosygina, 4, Moscow, 119334, Russia

    O. N. Lygo, T. D. Nekipelova, V. A. Kuzmin, V. V. Shakhmatov, V. A. Volnukhin & A. V. Shibaeva

  2. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninskii pr. 47, Moscow, 119991, Russia

    E. N. Khodot

  3. Chumakov Institute of Poliomyelitis and Viral Encephalitis, Russian Academy of Medical Sciences, Settlement of Poliomyelitis Institute, Moscow oblast, 142782, Russia

    V. V. Vargin & A. B. Shevelev

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  1. O. N. Lygo
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  2. T. D. Nekipelova
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  3. E. N. Khodot
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  4. V. A. Kuzmin
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  5. V. V. Shakhmatov
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  6. V. A. Volnukhin
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  7. V. V. Vargin
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  8. A. B. Shevelev
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  9. A. V. Shibaeva
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Correspondence to T. D. Nekipelova.

Additional information

Original Russian Text © O.N. Lygo, T.D. Nekipelova, E.N. Khodot, V.A. Kuzmin, V.V. Shakhmatov, V.A. Volnukhin, V.V. Vargin, A.B. Shevelev, A.V. Shibaeva, 2012, published in Khimiya Vysokikh Energii, 2012, Vol. 46, No. 3, pp. 216–221.

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Lygo, O.N., Nekipelova, T.D., Khodot, E.N. et al. Spectral and luminescence properties and photochemical transformations of 7,7,9-trimethyl-6,7-dihydrofuro[3,2-f]quinoline. High Energy Chem 46, 171–176 (2012). https://doi.org/10.1134/S0018143912030046

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  • DOI: https://doi.org/10.1134/S0018143912030046

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