Effect of solution medium on the rate constants of excited-state electron-transfer quenching reactions of ruthenium(II)-diimine photosensitizers

Effect of solution medium on the rate constants of excited-state electron-transfer quenching reactions of ruthenium(II)-diimine photosensitizers

Abstract 1. . . Hntrodwtion . . . . ..-......I......................*....-* , , . , . * . ..*. . * . s . , . . 1.. . . . ...

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Abstract

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EA. RP1PheIPiumIBIB-diimine photosensitiaers . . . 1.2. Phatoiracluced eh.ctron transfer !axictions . . . 2. Electron trarasfer . . . . , . . . * . . . . . . . . . . . theory ..*...............................*....*.... sianal and electml transfer components .*..,,..,................*...................... 4. Solvent...................... . . . . 4.1.

ion-pairing

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6. Ionic strength . . . . . . . . . . 6.1. Qlson--Simonson effect . 6.2. cific electrolyte eflects cknowl ements . . . . . . . . . eferences . . . . . . . . . . . . . .

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solvent eaect aation energy driving force. . . . . _. . . . . .

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3 37 37 371

Scieme S.A. electron-transfer

reactions;

B

-)=

f

-f-f”

*

YEi +/+.. . -I+-3

solution can subsequen ination,

te csnstantof an lectronic couplin ivatioan energy 0f the e solvent (outer s cou

all, the reaction is non-a

atic.

e electron transfer reaction to the

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2.

cl

3

ct

10’0

1200

150

c