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Influence of the donor chemical structure on the effective distance in photoinduced electron transfer

✍ Scribed by P. Jacques; X. Allonas

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 282 KB
Volume: 233
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)01446-3

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✦ Synopsis

In the context of the finite sink approximation, a parametrization of diffusion-limited electron transfer quenching of 9,10-dicyanoanthracene fluorescence by "rr' and 'n' donors is reported. The effective transfer distance R increases with exergonicity for "rr' donors (as shown by previous authors) and for 'n' donors although in a different manner. Therefore, our caveat about the necessity of distinguishing "rr' from 'n' donors for quenching rates is confirmed by the investigation of the effective transfer distance. This is illustrated by a detailed discussion of the data concerning a mixed donor: benzylamine.

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