Fluorescence Spectra and Determination of the Energy of O-O Transitions of Coumarins in Liquid Solutions
1990 ◽
Vol 45
(5)
◽
pp. 618-622
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Keyword(s):
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 excitation (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
2019 ◽
Vol 16
(3(Suppl.))
◽
pp. 0764
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Keyword(s):
1991 ◽
Vol 56
(2-3)
◽
pp. 165-181
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1997 ◽
Vol 53
(11)
◽
pp. 1743-1753
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1993 ◽
Vol 97
(38)
◽
pp. 9852-9862
◽
2013 ◽
Vol 102
◽
pp. 286-296
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2010 ◽
Vol 2010
◽
pp. 1-7
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2001 ◽
Vol 57
(7)
◽
pp. 1417-1426
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2006 ◽
Vol 65
(3-4)
◽
pp. 673-677
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