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Redox properties of cobalt(II) complexes with isoindoline-based ligands

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Abstract

Cobalt bis-(N-arylimino)isoindolinates undergo electrostatic interactions with DNA or react with alkyl hydroperoxides to form ketones and alcohols. Redox behavior of the metal center should affect such reactivities; therefore, six neutral CoII(L)2 complexes with L = bis-(N-arylimino)isoindolinates have been synthesized to elucidate the effect of the aryl substituents on the redox potential of the metal center. Redox properties of various MII(L)2 complexes (M = Mn, Fe, Co, Ni) are compared. Moreover, data are presented on the dismutation rates of superoxide radical anion (a knowingly sensitive reagent on the redox properties of the metal center) in the presence of the various CoII(L)2 complexes among identical conditions.

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Acknowledgments

Financial support of the Hungarian National Research Fund (OTKA K67871, OTKA K75783, and OTKA PD75360) and COST is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Chemistry, University of Pannonia, 8201, Veszprém, Hungary

    József S. Pap, Balázs Kripli, József Kaizer & Gábor Speier

  2. Aix-Marseille Université, FR1739, Spectropole, Campus St. Jérôme, Avenue Escadrille Normandie-Niemen, 13397, Marseille Cedex 20, France

    Michel Giorgi

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  1. József S. Pap
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  2. Balázs Kripli
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  3. Michel Giorgi
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  4. József Kaizer
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Correspondence to József Kaizer.

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Pap, J.S., Kripli, B., Giorgi, M. et al. Redox properties of cobalt(II) complexes with isoindoline-based ligands. Transition Met Chem 36, 481–487 (2011). https://doi.org/10.1007/s11243-011-9493-z

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  • DOI: https://doi.org/10.1007/s11243-011-9493-z

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