Trivalent Nickel. I. A Pulse Radiolytic Study of the Formation and Decomposition of the Ammoniacal Complex in Aqueous Solution

J. Lati, D. Meyerstein, J. Lati, D. Meyerstein

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Abstract

The oxidation of the NiII(NH3)n complex by NH2 radicals in aqueous solutions yields an unstable trivalent nickel complex. The specific rate of this reaction is 1 X 107 M~l sec-1. The absorption spectrum of the trivalent complex was measured. The mechanism of disappearance of the trivalent complex is via a second-order reaction with 2k < 3.5 X 107 M~l sec-1. The specific rate of the reaction OH + NH3åNH2 + H2O at pH 11.3 is 2.4 X 107 M-1 sec-1. The specific rate of oxidation of hydrazine by the trivalent nickel complex is 4 X 106 M-l sec-1.

Original languageEnglish
Pages (from-to)2393-2397
Number of pages5
JournalInorganic Chemistry
Volume11
Issue number10
DOIs
StatePublished - 1 Oct 1972
Externally publishedYes

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