Journalartikel

Autorenliste: Lerch, M; Weitzer, M; Stumpf, TDJ; Laurini, L; Hoffmann, A; Becker, J; Miska, A; Göttlich, R; Herres-Pawlis, S; Schindler, S

Jahr der Veröffentlichung: 2020

Seiten: 3143-3150

Zeitschrift: European Journal of Inorganic Chemistry

Bandnummer: 2020

Heftnummer: 33

ISSN: 1434-1948

Open Access Status: Hybrid

DOI Link: https://doi.org/10.1002/ejic.202000462

Verlag: Wiley-VCH Verlag

Abstract: 

Model complexes for copper proteins such as hemocyanin or tyrosinase have been investigated in detail during the last four decades due to their potential to become valuable catalysts for selective oxidations of organic substrates. However, so far most of these compounds can only be investigated in aprotic solvents at lower temperatures. Therefore, industrial applications on a larger scale are still missing. In contrast the copper(I) complex with the ligand tris[2-(1,4-diisopropylimidazolyl)]phosphine can form a quite stable dinuclear copper peroxido complex in the protic solvent methanol at room temperature. The kinetic analysis of the reaction of [Cu(Pim^iPr2)(CH₃CN)]CF₃SO₃ with dioxygen in methanol is reported. The results allowed to obtain rate constants and activation parameters (ΔH^# = 25 ± 2 kJ mol^–1 and ΔS^# = –121 ± 8 J mol^–1 K^–1) for the formation of the reactive intermediate, a mononuclear copper superoxido complex, prior to the consecutive reaction to a dinuclear peroxido complex.

Harvard-Zitierstil: Lerch, M., Weitzer, M., Stumpf, T., Laurini, L., Hoffmann, A., Becker, J., et al. (2020) Kinetic Investigation of the Reaction of Dioxygen with the Copper(I) Complex [Cu(PimiPr2)(CH3CN)]CF3SO3 {PimiPr2 = Tris[2-(1,4-diisopropylimidazolyl)]phosphine}, European Journal of Inorganic Chemistry, 2020(33), pp. 3143-3150. https://doi.org/10.1002/ejic.202000462

APA-Zitierstil: Lerch, M., Weitzer, M., Stumpf, T., Laurini, L., Hoffmann, A., Becker, J., Miska, A., Göttlich, R., Herres-Pawlis, S., & Schindler, S. (2020). Kinetic Investigation of the Reaction of Dioxygen with the Copper(I) Complex [Cu(PimiPr2)(CH3CN)]CF3SO3 {PimiPr2 = Tris[2-(1,4-diisopropylimidazolyl)]phosphine}. European Journal of Inorganic Chemistry. 2020(33), 3143-3150. https://doi.org/10.1002/ejic.202000462