Trapping of Cu~(2+) and VO~(2+) ions in conducting polymer matrices - EPR studies

摘要

EPR spectra were recorded in order to prove complexation of Cu~(2+) and VO~(2+) ions by some conducting polymers. Poly(1,8-diaminonaphtalene), poly(1,5-diaminonaphtalene) and poly(o-aminophenol) matrices were used to trap these ions. The g values for the studied complexes are significantly higher as compared with the respective values for aqua complexes of vanadium and copper(II) salts (e.g.VOSO_4 centre dot 5H)2O and CuSO_4 centre dot 5H_2O). It was interpreted in terms of spin-orbit interaction and delocalization of unpaired electron on the polymeric ligands.