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The mechanisms of photochromic transformations of 2-indolylfulgides

  • Physical Chemistry
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Russian Chemical Bulletin Aims and scope

Abstract

Photochromic properties of 2-indolylfulgides, namely, Z-3-[1-(1,3-dimethyl-1H-indol-2-yl)ethylidene]-4-isopropylidenetetrahydrofuran-2,5-dione andE-3-isopropylidene-4-(1-methyl-1H-indol-2-ylmethylidene)tetrahydrofuran-2,5-dione, were studied. The quantum yields of their photochemical isomerizations in toluene and the rate constant of the dark ring-opening in ethanol were determined. The fluorescence spectra of the open and cyclic forms of 2-indolylfulgides were measured. It was assumed that the excited-stateZ-isomer can be transformed into a cyclic isomer without intermediacy of anE-isomer in the ground state.

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Authors and Affiliations

  1. D. I. Mendeleev Russian University of Chemical Technology, 9 Miusskaya pl., 125047, Moscow, Russian Federation

    O. Yu. Fedorovsky

  2. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation

    V. L. Ivanov & B. M. Uzhinov

Authors
  1. O. Yu. Fedorovsky
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  2. V. L. Ivanov
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  3. B. M. Uzhinov
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Additional information

Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 6, pp. 1026–1029, June, 2000.

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Fedorovsky, O.Y., Ivanov, V.L. & Uzhinov, B.M. The mechanisms of photochromic transformations of 2-indolylfulgides. Russ Chem Bull 49, 1020–1023 (2000). https://doi.org/10.1007/BF02494887

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  • DOI: https://doi.org/10.1007/BF02494887

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