The bridge towards a more stable and active side-on-peroxido (Cu<sub>2</sub><sup>II</sup>(µ-η<sup>2</sup>:η<sup>2</sup>-O<sub>2</sub>)) complex as a tyrosinase model system
Rosalie Dalhoff, Regina Schmidt, Lena Steeb, Kristína Rabatinová, Matthias D. Witte, Simon Teeuwen, Salim Benjamaâ, Henrika M. Hüppe, Alexander Hoffmann, Sonja Herres‐Pawlis
Abstract
UV/Vis-spectroscopy. Products of the catalytic conversion could be isolated and characterized and the ligand could be successfully recycled after catalysis experiments. Furthermore, the peroxido complex was reduced by reductants with different reduction potentials. The characteristics of the electron transfer reactions were investigated with the help of the Marcus relation. The combination of the high stability and catalytic activity of the peroxido complex with the new dinucleating ligand, enables the shift of oxygenation reactions for selected substrates towards green chemistry, which is furthered by the efficient ligand recycling capability.