caa a22 4500 475758757 CHVBK 20180406123544.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1007/BF02494887 doi (NATIONALLICENCE)springer-10.1007/BF02494887 The mechanisms of photochromic transformations of 2-indolylfulgides [Elektronische Daten] [O. Fedorovsky, V. Ivanov, B. Uzhinov] 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. Kluwer Academic/Plenum Publishers, 2000 photochromism nationallicence 2-indolylfulgides nationallicence fluorescence nationallicence quantum yields nationallicence Fedorovsky O. D. I. Mendeleev Russian University of Chemical Technology, 9 Miusskaya pl., 125047, Moscow, Russian Federation aut Ivanov V. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut Uzhinov B. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/6(2000-06-01), 1020-1023 1066-5285 49:6<1020 2000 49 11172 https://doi.org/10.1007/BF02494887 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02494887 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fedorovsky O. D. I. Mendeleev Russian University of Chemical Technology, 9 Miusskaya pl., 125047, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Ivanov V. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut NATIONALLICENCE 700 1- Uzhinov B. Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, 119899, Moscow, Russian Federation aut NATIONALLICENCE 773 0- Russian Chemical Bulletin Kluwer Academic Publishers-Plenum Publishers 49/6(2000-06-01), 1020-1023 1066-5285 49:6<1020 2000 49 11172 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer