| Abstract: | Abstract The chemical and direct electrochemical syntheses of copper, cobalt, nickel and zinc chelates of 2-N-tosylamine)benzaldoxime (L1H2) and 2-N-tosylamine)benzal-O-methyloxime (L2H) are reported. On the basis of the elemental analyse IR and EPR spectra and magnetic properties, dimeric structures ML are suggested from L1H2 under the conditions of the chemical synthesis, while electrosynthesis leads to the monomeric complexes M(L1H)2. Using L2H as a ligand, only the chelates ML2 2 are formed, regardless of the method of synthesis. The copper dimers CuL1 have antiferromagnetic properties, while the chelates M(L1H)2 and ML2 have normal magnetic moments. In agreement with the magnetic properties and literature data on structures of four-coordinate complexes a tetrahedral structure is assigned. |
