Electronic and Molecular Structure of some Organic Radical Cations in Rigid Organic Systems

Abstract

Some recent investigations on organic radical cations M∙⁺ obtained by γ-ray induced ionic processes in rigid organic systems are reviewed. Particular attention is paid to the strategy of comparing the electronic spectrum of M∙⁺ with the UV-photoelectron spectrum of the parent neutral M, yielding insight into the nature of the electronic states of M∙⁺, into medium effects influencing them, and into relaxation and isomerization processes undergone by M∙⁺.