Trapping of Cu2+ and VO2+ ions in conducting polymer matrices - EPR studies

EPR spectra were recorded in order to prove complexation of Cu2+ and VO2+ i ons by some conducting polymers. Poly(1,8-diaminonaphtalene), poly(1,5-diam inonaphtalene) and poly(o-aminophenol) matrices were used to trap these ion s. The g values for the studied comlexes are significantly higher as compar ed with the respective values for aqua complexes of vanadium and copper (II ) salts (e.g. VOSO4. 5H(2)O and CuSO4. 5H(2)O). It was interpreted in terms of spin-orbit interaction and delocalization of unpaired electron on the p olymeric ligands. (C) 1999 Elsevier Science B.V. All rights reserved.