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Novel 1-and 9-aminoanthracene/3-aminobenzanthrone bichromophores exhibiting through-bond excitation energy transfer
Authors: Almonasy Numan | Přichystalová Hana | Nepraš Miloš | Bureš Filip | Michl Martin | Čermák Jiří | Grampp Guenter
Year: 2015
Type of publication: článek v odborném periodiku
Name of source: Dyes and Pigments
Publisher name: Elsevier Science
Place: Oxford
Page from-to: 183-191
Titles:
Language Name Abstract Keywords
cze Nové1-a 9-aminoanthracen/3-aminobenzanthron bichromofory vykazující mezivazebný přenos excitační energie. Byly syntetizovány a charakterizovány nové 1/9- aminoanthracen-triazin-3-aminobenzanthronové bichromofory za účelem studia excitation energy transfer were synthesized and characterised. Byly měřeny abrospční a emisní spektra a kvantové výtěžky fluorescence. U všech studovaných látek byl prokázán vysoce účinný přenos excitační energie. bichromofory; absorpce; fluorescence; přenos energie; semiempirické výpočty
eng Novel 1-and 9-aminoanthracene/3-aminobenzanthrone bichromophores exhibiting through-bond excitation energy transfer New 1/9- aminoanthracene-triazine-3-aminobenzanthrone bichromophores for the study of excitation energy transfer were synthesized and characterised. Absorption and emission spectra and fluorescence quantum yields were measured. Equilibrium ground state conformations and singlet electronic excited states characteristics were calculated at semiempirical level. A decrease of qF in polar solvents may be explained by the CT state connected with electron transfer from the HOMO localized on the donor to the LUMO spread over the acceptor. A highly efficient energy transfer mediated by through-bond mechanism was observed for all compounds. Bichromophores; Absorption; Fluorescence quenching; Energy transfer; Semiempirical calculations; Through-bond