CuII and ZnII phenoxyl complexes and radical complexes thereof, methods for their preparation and use

摘要

Quadridentate CuII and ZnII phenoxyl complexes and phenoxyl radical complexes thereof, in which one ligand L is bonded to each metal atom and H2L stands for the general formula in which the bridge-unit Q stands for -S-, -O-, -N(R3)-, -P(R4)-, or ortho-NH-C6H4-NH- and R1 and R2 stand for radical-stabilizing residues. Preferred radical complexes include The radical complexes are oxidation catalysts for oxidizing organic substrates with O2 in the course of which H2O2 is also formed.