Photolysis of solid KClO4 at 185 nm studied by chemical analysis, electron spin resonance and optical spectroscopy

Abstract

O₂ and ClO^–₃ have been established as primary products in the photolysis of KClO₄ at 185 nm, whereas Cl^– is the dominant product of secondary photolysis. The primary photolysis resembles the radiolysis of KClO₄, with the exception that Cl^– is a primary product in radiolysis but not in photolysis.

It is proposed that the primary photolytic process is photoionzation, in which an electron is transferred between adjacent anions. The resulting charge-transfer complex may account for the observed transient optical absorptions.