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'Shapes of molecular spectra' in keywords
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1990 (2)
1Author    A. Bączyński, P. Targowski, B. Ziętek, D. RadomskaRequires cookie*
 Title    Fluorescence Spectra and Determination of the Energy of O-O Transitions of Coumarins in Liquid Solutions  
 Abstract    Analytical expressions of absorption and fluorescence spectra of some coumarins in ethyl alcohol at room temperature are given. Satisfactory agreement of measured and calculated spectra is obtained. It was possible to obtain the pure electronic transition energies immediately after excita-tion (from absorption spectra) and after the thermal and orientational equilibrium is reached (from fluorescence). An optical transition carries a dye-solvent system to a state in which the mutual interaction energy is larger than in the initial state. 
  Reference    Z. Naturforsch. 45a, 618—622 (1990); received September 29 1989 
  Published    1990 
  Keywords    Photoluminescence of solutions, Shapes of molecular spectra, Coumarins 
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 TEI-XML for    default:Reihe_A/45/ZNA-1990-45a-0618.pdf 
 Identifier    ZNA-1990-45a-0618 
 Volume    45 
2Author    A. Bączyński, P. Targowski, B. Ziętek, D. RadomskaRequires cookie*
 Title    Franck-Condon States of Coumarins in Alcoholic Solutions  
 Abstract    The temperature dependence of the fluorescence spectra of coumarin 2, coumarin 10 and cou-marin 120 in ethyl alcohol is investigated. A blue-shift of the spectra with increase of temperature is observed. The blue-shift is explained by means of excited and ground Franck-Condon state parameters obtained by the adjustment of analytical shape factors to experimental spectra. 
  Reference    Z. Naturforsch. 45a, 1349—1353 (1990); received March 6 1990 
  Published    1990 
  Keywords    Photoluminescence of solutions, Shapes of molecular spectra, Coumarins 
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 TEI-XML for    default:Reihe_A/45/ZNA-1990-45a-1349.pdf 
 Identifier    ZNA-1990-45a-1349 
 Volume    45