[Impulse photoconductivity of solutions of chlorophyll and its analogs. II. Effect of medium polarity on the yield of ion-radicals during the photoxidation of chlorophyll a ].
The effect of the dielectric constant epsilon of the solvent on the yield delta n of ion-radicals during photooxidation of chlorophy-l a with n-benzoquinone was studied by the method of impulse photoconductivity. It was shown that in the studied range of dielectric constant valve (epsilon congruent to 5-25) delta n monotonously increased with an increase of epsilon the relationship delta n (epsilon) being of clearly pronounced S-like character with a bend in the region of epsilon congruent to 10. A half-quantitative explanation of the data obtained is presented.
D000433:1-Propanol; D000440:Butanols; D002734:Chlorophyll; D004553:Electric Conductivity; D000431:Ethanol; D000441:Hexanols; D000442:Octanols; D010084:Oxidation-Reduction; D000439:Pentanols; D010777:Photochemistry; D011809:Quinones
D000440:Butanols; D000441:Hexanols; D000442:Octanols; D000439:Pentanols; D011809:Quinones; D002734:Chlorophyll; D000431:Ethanol; D000433:1-Propanol
Impul'snaia fotoprovodimost' rastvorov khlorofilla i ego analogv. II. Uliianie poliarnosti sredy na vykhod ion-radikalov pri fotookislenii khlorofilla a