Formation of solute excited states and radicals during pulse radiolysis of naphthalene in ethereal solutions

Abstract

Yields of solute radicals and triplet and singlet excited states differ markedly for solutions of naphthalene in two ethers, 1,2-dimethoxyethane (DME) and tetrahydrofuran (THF), which have almost the same dielectric constant (7.2 and 7.4 respectively at 25°C). The concentration dependences reveal that in both solvents the production of radicals and excited states are not inter-related in a simple manner; production of singlet and triplet states do, however, seem to be related.