The preparation and characterization of tetranuclear Cu4(bnac) 4(μ-OEt)4 complex is described. Crystallographic characterization of this complex has shown that the co-ordination geometry around copper(II) ions is distorted square pyramidal (monoclinic, C2/c, a = 13.3980(2) Å, b = 14.6080(2) Å, c = 25.7460(4) Å, α = 90.00°, β = 103.4090(10)°, γ = 90.00°, V = 4901.59(13) Å3, Z = 8). The in situ-generated Cu2(bnac) 2(μ-OEt)4(4R-py)4 complexes were suitable catalysts for the catalytic oxidation of 3,5-DTBCH2 to 3,5-DTBQ with dioxygen at ambient condition in good yields. The catalytic activity was found to obey Michaelis-Menten type kinetics and increase with electron-releasing substituent on co-ordinated pyridines.
- Catecholase activity
- X-ray structure
ASJC Scopus subject areas
- Process Chemistry and Technology
- Physical and Theoretical Chemistry