ELECTROCHEMISTRY AT ANTHRACENE CRYSTAL/AQUEOUS NO2-, NO3- SOLUTION INTERFACE

Article abstract of DOI:10.1021/j100320a023

Holes (radical cations) were injected into one face of an anthracene crystal slab and discharged at the other face, which was in contact with a neutral aqueous solution containing 1 M NO3^- or NO2^-.Hole current densities (J) of up to 700 μAcm^-2 generated a variety of surface oxidation products including anthraquinone, 9-nitroanthracene (9NA), oxanthrone, anthrone, bianthronyl (BA), and 9,10-dinitroanthracene with both NO3^- and NO2^- solutions.The amount of BA and 9NA increased as J².With increasing NO3^- concentration, the amount of 9NA produced increased, while that of BA decreased.It was concluded that 9NA is made by cooperation of two holes on adjoining molecules at defect sites.