PHOTODISSOCIATION OF CHARGE-TRANSFER COMPLEXES BASED ON AROMATIC-AMINES AND BROMINE-CONTAINING ELECTRON-ACCEPTORS

Ionic photodissociation of Am.HBMS donor-acceptor complexes leads to the formation of a primary coloured product that is a diphenylmethane dye and acid H+[S(O)2CBr3] if Am is diphenylamine, or N,N-diphenylphenylmethyleneiminium bromide and acid H+[CBr2=S(O)2-CBr3]- if Am is diphenylbenzylamine [hexabromodimethylsulfone (HBMS) is the electron acceptor]; the structure of the amine determines the difference in the coloured products.