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Contribution to the Complex-Formation of Diphenylcarbazone with cations. Complexes of Zinc, Nickel, and Cobalt

✍ Scribed by O. M. Peeters; N. M. Blaton; G. J. Willems; C. J. De Ranter

Publisher: Wiley (John Wiley & Sons)
Year: 2010
Weight: 186 KB
Volume: 87
Category: Article
ISSN: 0037-9646
DOI: 10.1002/bscb.19780871105

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✦ Synopsis

Abstract

The complexes of diphenylcarbazone with zinc, nickel and cobalt are studied spectrophotometrically in a 50 volume percent aqueous acetone medium. The wavelength of maximal absorbance is situated between 520‐525 nm. The three complexes show a 1:2 stoichiometry as derived independently from the method of continuous variation and the slope‐ratio method. The molar absorptivities amount to 70000‐77500 1 mo1^−1^ cm^−1^ and the conditional constants have an order of magnitude of 10^7^.

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