THE APPLICATION OF THE ELECTROCHEMILUMINESCENCE METHOD FOR STUDYING THE MECHANISM OF ELECTRODE-REACTIONS COMPLICATED BY SUBSEQUENT CHEMICALSTAGES - MECHANISMS OF THE OXIDATION REACTION AND ANODIC ELECTROCHEMILUMINESCENCE IN SYSTEMS CONTAINING SODIUM TETRAPHENYLBORATE

The anodic reaction and homogeneous oxidation of the Ph(4)B(-) tetraph enylborate anions (Ph = C6H5) are studied by the electrochemiluminesce nce (ECL) technique. Anodic ECL of a number of electrochemiluminophore s is discovered during electrolysis by a unipolar pulsed or constant v oltage in a volumetric cell with ordinary electrodes. The ECL of 1,5-d iphenyl-3-styrylpyrazoline in conjunction with Ph(4)BNa, and the calcu lated parameters of the ECL diffusion kinetics demonstrate that the ne ar-anode ECL is caused by a strongly exothermic interaction of electro generated radical cations with the Ph free radicals. The latter are in termediate products of homogeneous oxidation of Ph(4)B(-) by the radic al cations.