Copper(II) Schiff base complexes derived from 2,2′-dimethyl-propandiamine: Synthesis, characterization and catalytic performance in the oxidation of styrene and cyclooctene

摘要: Abstract Two new mononuclear copper(II) complexes ([CuL1]·CHCl3 (1) and [CuL2] (2)) have been prepared by the reaction of two ONNO type Schiff base ligands, ([bis(2-hydroxy-propiophenone)2,2′-dimethylpropan-diamine] (H2L1) [bis(5-bromosalicylaldehyde)2,2′-dimethyl-propandiamine] (H2L2)) with Cu(OAc)2·H2O in 1:1 molar ratios. The characterized elemental analyses, IR UV–Vis spectroscopy. structures confirmed X-ray single crystal analysis at 100 K. Cu(II) atom 1 is coordinated equatorially a N2O2 donor set tetradentate, dinegative Schiff-base (L1)2− distorted square planar arrangement. While (2), ion possesses an additional weak intermolecular contact one bromine ligand, thus coordination sphere 2 can be described as strongly pyramidal. catalytic performance copper for oxidation styrene cyclooctene tert-butyl hydroperoxide has evaluated.