PREPARATION AND STRUCTURES OF CRYSTALLINE AROMATIC CATION-RADICAL SALTS - TRIETHYLOXONIUM HEXACHLOROANTIMONATE AS A NOVEL (ONE-ELECTRON) OXIDANT

Triethyloxonium hexachloroantimonate [Et3O+SbCl6-] is a selective oxid ant of aromatic donors (ArH), and it allows the facile preparation and isolation of crystalline paramagnetic salts [ArH+., SbCl6-] for the X -ray structure determination of various aromatic cation radicals. The mechanistic relationship between the Meerwein salt [Et3O+SbCl6-] and t he pure Lewis acid oxidant SbCl5 is based on a prior ethyl transfer fr om oxygen to chlorine within the ion pair.