Intermolecular electron transfer from naphthalene derivates in the higher triplet excited states

Intermolecular electron transfer (ELT) from a series of naphthalene derivatives (Npd) in the higher triplet excited states (Tn) to carbon tetrachloride (CCl4) in Ar-saturated acetonitrile was observed using the two-color two-laser flash photolysis method. The ELT efficiency depended upon the driving force of the triplet energy transfer (ENT), the ELT became apparent when sufficient free energy change of ELT was attained.