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The electrochemical behaviour of the nickel(II) ion at the dropping mercury electrode in the presence of some complexing agents — II

✍ Scribed by P.K. Aggarwal; D.R. Crow

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
510 KB
Volume
25
Category
Article
ISSN
0013-4686

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✦ Synopsis

The polarographic characteristics of the nickel(H) ion in the presence of six heterocyclic species are reported; although slight mechanistic differences exist in reduction behaviour between members of the pyridine and pyrazole series, they share the common feature that the rate-determining step involves two electrons. This contrasts with other systems, notably water, imidazole and ethylenediamine, for which the transfer of one electron is rate-determining. Distinct correlations between polarographic and spectroscopic parameters exist depending upon the nature of the electrochemical rate-determining step.

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