Influence of the configuration of the amine nitrogen atom on the efficiency of fluorescence of 4-aminonaphthalimide derivatives

Autor:	Yu. A. Mednykh, Valery V. Volchkov, Yu. A. Manaev, B. M. Uzhinov
Rok vydání:	2004
Předmět:	chemistry.chemical_classification Chemistry Polarity (physics) Inorganic chemistry Substituent General Chemistry Photochemistry Fluorescence Turn (biochemistry) chemistry.chemical_compound Nitrogen atom Heterocyclic amine Polar Amine gas treating
Zdroj:	Russian Journal of General Chemistry. 74:1728-1733
ISSN:	1608-3350 1070-3632
Popis:	The fluorescence properties of 4-aminonaphthalimide were studied in relation to the size of the heterocycle incorporating the amine nitrogen atom, the temperature, and the polarity of the medium. Increases in the temperature, polarity of the medium, and heterocycle size increase the efficiency of the nonradiative deactivation and insignificantly affect the fluorescence rate. The low efficiency of fluorescence of 4-aminonaphthalimides in polar solvents is associated with formation of a nonfluorescing charge-transfer state. The efficiency of fluorescence of 4-aminonaphthalimides is directly associated with the inversion barrier of the amine nitrogen atom, which, in turn, is determined by the structure of the heterocyclic amine substituent.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e5a6aa22eb81901f9f9c4e7b530469a4 https://doi.org/10.1007/s11176-005-0091-7 Zobrazit plný text záznamu Plný text ve formátu PDF