Zum Lumineszenzverhalten von 9-Fluorenon

Autor:	H. Labhart, Christian Huggenberger
Rok vydání:	1978
Předmět:	Ethanol Hydrogen bond Organic Chemistry Butane Photochemistry Biochemistry Fluorescence Catalysis Inorganic Chemistry chemistry.chemical_compound chemistry Fluorenone Drug Discovery Physical and Theoretical Chemistry Diethyl ether Phosphorescence Luminescence
Zdroj:	Helvetica Chimica Acta. 61:250-257
ISSN:	1522-2675 0018-019X
DOI:	10.1002/hlca.19780610122
Popis:	On the Luminescence of 9-Fluorenone The fluorescence of 9-fluorenone has been measured in various solvents. At room temperature and for non-hydrogen bonding solvents an emission with 19.3 ⩽ max ⩽ 21.4 · 103 cm−1 is found, whereas the fluorescence for hydrogen bonding solvents is broad and strongly red shifted, 16.7 ⩽ max ⩽ 17.5 · 103 cm−1. For these solvents also a strong temperature dependence of the emission characteristics is observed. The effects are attributed to hydrogen bonding of excited singlet fluorenone. Further, the phosphorescence of 9-fluorenone is detected for ethanol and EPA (diethyl ether/2-methyl-butane/ethanol (99.5%) 5:5:2) solutions, locating the lowest triplet ππ* state at 17,600 cm−1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::406352ee9e02b84ff3a544298b34f5d7 https://doi.org/10.1002/hlca.19780610122 Zobrazit plný text záznamu Plný text