Oxidation of a Nickel(II) Complex with an Unsaturated Macrocyclic Ligand in Aqueous Solutions. A Pulse Radiolytic Study

Moshe Jaacobi, Dan Meyerstein, Jochen Lilie

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72 Scopus citations

Abstract

The kinetics of oxidation of NiIIL by Br2- and OH radicals in aqueous solutions were studied. The kinetics of the aquation reaction NilIILBr2+→NiIIIL+Br- was found to be base catalyzed. The pk of the reaction NilIIL3+⇄NilnL(OH)2+ was determined, pK=3.45, and the redox potential of the couple NiIIIL3+/NiIIIL2+ is 1.34 V. The mechanism of decomposition of NiIIIL is discussed. The spectra of the different intermediates are reported.

Original languageEnglish
Pages (from-to)429-433
Number of pages5
JournalInorganic Chemistry
Volume18
Issue number2
DOIs
StatePublished - 1 Jan 1979

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