Spectral and luminescence properties and photochemical transformations of 7,7,9-trimethyl-6,7-dihydrofuro[3,2-f]quinoline

Autor:	V. A. Kuzmin, O. N. Lygo, A. B. Shevelev, V. A. Volnukhin, V. V. Vargin, Tatiana D. Nekipelova, A. V. Shibaeva, E. N. Khodot, V. V. Shakhmatov
Rok vydání:	2012
Předmět:	Hexane Solvent chemistry.chemical_compound chemistry Yield (chemistry) Excited state Photodissociation Quinoline Substituent Physical and Theoretical Chemistry Photochemistry Luminescence
Zdroj:	High Energy Chemistry. 46:171-176
ISSN:	1608-3148 0018-1439
DOI:	10.1134/s0018143912030046
Popis:	Spectral, luminescent, and photochemical properties of 7,7,9-trimethyl-6,7-dihydrofuro[3,2-f]quinoline (FDHQ) have been studied in hexane, alcohols, and water. Unlike 1,2-dihydroquinolines without the furo substituent, the fluorescence quantum yields for FDHQ in water and methanol are high (0.4 and 0.2, respectively), thereby indicating a difference in routes of excitation energy degradation in these compounds. The regularities in the FDHQ phototransformations have been studied by steady-state photolysis. The composition and the yield of final products depend on the presence or absence of oxygen in the system to a higher extent than on the solvent nature. This indicates the participation of the triplet excited state in the photo-chemical reactions in oxygen-free systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41aad0a14bdd5651533fe686a2685cea https://doi.org/10.1134/s0018143912030046 Zobrazit plný text záznamu Plný text ve formátu PDF