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Int. J. Mol. Sci. 2006, 7(5), 130-143; doi:10.3390/i7050130
Article

Reaction of 2,2-Diphenyl-1-picrylhydrazyl with HO•, O2•, HO ,and HOO Radicals and Anions

1,* , 2, 3, 4, 1 and 5,*
Received: 24 March 2006; Accepted: 15 May 2006 / Published: 15 May 2006
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Abstract: Using electronic absorption spectra and thin layer chromatography, the reactionof 2,2-diphenyl-1-picrylhydrazyl (DPPH) with O2•, HO•, HO, and HOO anions and freeradicals revealed the formation of the para-nitro- and para-hydroxy-derivatives of 2,2-diphenyl-1-picrylhydrazine (DPPH-H) and of DPPH fragmentation products(diphenylamine, tetraphenylhydrazine). The reaction of DPPH with the O2•anion-radical(from KO2 in benzene solution at room temperature in the presence of 18-crown-6 ether) ispseudo-first-order during the first 25 minutes.
Keywords: Diphenylpicrylhydrazyl; Reactions with potassium superoxide; hydrogen peroxide; hydroxy free radical. Diphenylpicrylhydrazyl; Reactions with potassium superoxide; hydrogen peroxide; hydroxy free radical.
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Hristeac, E.N.; Caproiu, M.T.; Pencu, G.; Hillebrand, M.; Constantinescu, T.; Balaban, A.T. Reaction of 2,2-Diphenyl-1-picrylhydrazyl with HO•, O2•, HO ,and HOO Radicals and Anions. Int. J. Mol. Sci. 2006, 7, 130-143.

AMA Style

Hristeac EN, Caproiu MT, Pencu G, Hillebrand M, Constantinescu T, Balaban AT. Reaction of 2,2-Diphenyl-1-picrylhydrazyl with HO•, O2•, HO ,and HOO Radicals and Anions. International Journal of Molecular Sciences. 2006; 7(5):130-143.

Chicago/Turabian Style

Hristeac, Elena N.; Caproiu, Miron T.; Pencu, Gabriela; Hillebrand, Mihaela; Constantinescu, Titus; Balaban, Alexandru T. 2006. "Reaction of 2,2-Diphenyl-1-picrylhydrazyl with HO•, O2•, HO ,and HOO Radicals and Anions." Int. J. Mol. Sci. 7, no. 5: 130-143.


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