Sn. Guha et Jp. Mittal, KINETICS OF ONE-ELECTRON REDUCTION OF ACRIDINE-ORANGE AND CHARACTERIZATION OF ITS SEMIREDUCED SPECIES IN AQUEOUS-SOLUTIONS BY PULSE-RADIOLYSIS, Journal of photochemistry and photobiology. A, Chemistry, 92(3), 1995, pp. 181-188
Semireduced acridine orange was generated pulse-radiolytically by reac
tions of various one-electron reducing radicals (e(aq)(-), (CH3)(2)COH
, CO2-) with the cationic dye acridine orange. Rate constants for the
reactions of all these radicals with the dye were determined and the y
ields of the transient, semireduced acridine orange in these reactions
were estimated. Spectral and acid-base properties of the semireduced
species formed by these reactions have been evaluated and the nature o
f its decay kinetics has been resolved. Rate constants for the interac
tion of the transient with the parent molecule have been determined. U
sing (CH3)(2)CO, H+/(CH3)(2)COH as the standard couple, the one-electr
on reduction potential of the dye was determined.