Über Reaktionen oxygenierter Kobalt(II)-Chelate: I. Diäthylentriamin-N2-acetato-kobalt(II) als O2-Träger

Authors

  • A. Conzetti Institut für Anorganische Chemie der Universität Basel
  • S. Fallab Institut für Anorganische Chemie der Universität Basel

DOI:

https://doi.org/10.2533/chimia.1973.435

Abstract

Diethylenetriamine-N2-acetato-cobalt(II) takes up molecular oxygen in air saturated aequous solution. A dibridged binuclear dioxygen adduct is formed, which in comparison with other O2-complexes of similar structure, exhibits unusual stability. The dissociation to CoII and O2 in acid solution follows the rate law d[O2]/dt = −k[adduct][H+] with k = 50M-1s-1 (20°, 0.2 M NaCl). In neutral or slightly alcaline solution a very slow oxidation (t1/2 ≈ 107s, 20°, pH 9) to CoIII takes place. The structural factors for stability and reactivity are discussed.

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Published

1973-08-31

Issue

Vol. 27 No. 8 (1973): Forschung/Research

Section

Kurze Mitteilungen

License

Copyright (c) 1973 A. Conzetti

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
A. Conzetti, S. Fallab, Chimia 1973, 27, 435, DOI: 10.2533/chimia.1973.435.