CONTROL OF REACTION COURSE OF THE EXCITED-STATE OF CHARGE-TRANSFER COMPLEXES BY THE FREE-ENERGY OF BACKWARD ELECTRON-TRANSFER

Selective excitation of charge-transfer (CT) complexes between acenaph thylene and various electron accepters gives net reaction products whe n the resulting radical ion pairs lie at sufficiently higher energy th an the ground state (large -Delta G(BET)); however, with decrease of - Delta G(BET), these tend to become less reactive and finally non-react ive.