On twisted intramolecular charge transfer (TICT) states in N-aryl carbazoles |
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| Authors: | W. Rettig M. Zander |
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| Affiliation: | I.N. Stranski Institute for Physical and Theoretical Chemistry, Technical University of Berlin. D-1000 Berlin-12, FRG;Laboratory of the Rūtgerswerke AG. D-4620 Castrop-Rauxel, FRG |
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| Abstract: | By comparing fluorescence behaviour of carbazole derivatives carb-N-R with R = phenyl (CB). 4-cyanophenyl (CBN). 1-naphthyl (CIN) and 9′-phenanthryl (C9P) theoretical presuppositions for efficient TICT state population are exemplified. While CB fluoresces from a locally excited state, CBN, CIN and C9P exhibit exclusively TICT fluorescence in polar solvents, with an unusually lugh quantum yield. |
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