Determination of nickel(II) by its influence on the oxidation of 3,3’,5,5’-tetramethylbenzidine with periodate

Ionic nickel(IV)-dimethylglyoxime complexes have been prepared by oxidation of nickel(II)-dimethylglyoxime in alkaline solutions with ferricyanide. A novel base-controlled equilibrium is demonstrated between the monomeric and dimeric nickel(IV)-dimethylglyoxime complexes in solution. The oxidation state of nickel as +4 is confirmed by titration with hydroxylamine salt. The results obtained from the UV/VIS spectrophotometry, titrimetry, infrared and NMR studies are discussed.

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An unusual base-controlled equilibrium between monomeric and dimeric nickel(IV)–dimethylglyoxime complexes

Sivaramakrishna

Rao

Muralikrishna

et al. 2008

Transition Met Chem

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Determination of nickel(II) by its influence on the oxidation of 3,3’,5,5’-tetramethylbenzidine with periodate

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References 5 publications

An unusual base-controlled equilibrium between monomeric and dimeric nickel(IV)–dimethylglyoxime complexes

An unusual base-controlled equilibrium between monomeric and dimeric nickel(IV)–dimethylglyoxime complexes

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