Vertical and Nonvertical” Energy Transfer Processes. A General Classical Treatment “

Journal of the American Chemical Society

Volumn 102, Issue 7, 1980, Pages 2152-2163

  Balzani, Vincenzo ^a   Bolletta, Fabrizio ^b   Scandola, Franco ^a  

^a CNR   (Italy)

^b UNIVERSITY OF BOLOGNA   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001106707     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja00527a002     Document Type: Article

References (99)

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44. A preliminary communication on this topic has recently been published.41
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60. It is important to note that for electron-transfer processes such a criterion is less stringent, only one such overlap being required. This may be the reason why electron transfer prevails over energy transfer when both processes are in their highly exoergonic region (e. g., see ref 27).
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66. In some cases, however, the important parameters are known and the quantum mechanical approach Is possible.61
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70. It should be noted that eq 29 is based on the kinetic scheme of eq 18, which is certainly too simple for treating the stilbene case. If a single broad minimum is assumed for the triplet excited state, the scheme should be modified so as to consider two back-energy transfer paths leading to ground cis and trans isomers. However, owing to the small free-energy difference between the two isomers (see later), the free-energy change of the two back processes is approximately the same. Thus the use of eq 18 is acceptable. A more detailed, though still incomplete, kinetic scheme is given in ref 19. See also ref 61.
71. The best fitting curve has been chosen among families of curves obtained from eq 29 using the following sets of parameters: AG*(0) = 50, 500, 1000, 1500, 2000, 2500 cm_\ k°en = 5 X 109, 1 X 1010, 5 X 1010, 1 X 1011, 5 X 1011,1 X 1012s-1. The E°°(*A,A) value has been taken as the E°°(D,D) value corresponding to AG = 0 in the best fitting curve.
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