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Behavior of radical ion pairs produced by photoinduced electron transfer in polar solutions : Their dynamics in picosecond-hundred nanosecond regime by Noboru Mataga; Tadashi Okada; Yu Kanda; Hiroshi Shioyama is a Chemistry article available to read on EtoBox.

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A&rat&-Thedynamic behavior ofra&aI ion pain in polar solvents has been studied by direeUy observing time-resolvaI transient abeorptiou xpeetra ia the pimnd-hundred mumsecond regime and also by observing the picosacond laser induwd photocurrent. Fyrene-N.N-dðykniline, pyrawq-diqanobcnxenc. pyrenc-tricthylamine excipkx systems and the excited state of pyrene-pyromeUitic dianhydride ekctron donor-acceptor complexes in polar solvents have been examined. It has been clearly demonstrated that the rate constant ik, of the charge recombmation deactivation of mdicaI ion pairs shows a strong depe&mcc upon the energy gap AC;, (between the ion pair and the neutral ground state) and upon the molecular nature of individual electron donor or acaptor ions. The plot of k,vs AGw for the chcmkally sin&r x-n excipkx systems as well as singlet excited electron donor+cceptor compkx systems studied in this and some t~revious w& showed ckarly the characteristic features of the socalled Marcus inverted ngion.

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Author

Noboru Mataga; Tadashi Okada; Yu Kanda; Hiroshi Shioyama

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0040-4020)

Published

1986

Language

EN

Field

Chemistry (Physical Sciences)