Electron spin echo modulation analysis of photoproduced radical cation locations in micelles and vesicles

Abstract

The electron spin echo modulation method provides a technique to measure very weak dipolar hyperfine interactions between a paramagnetic species and surrounding magnetic nuclei about 0.25–0.6 nm distant from the paramagnetic center. This technique is used to measure the surroundings of the photoproduced paramagnetic radical cations in micellar and vesicular structures in order to determine the structural constraints that optimize and control the charge separation process of molecules embedded in such organized molecular media. This control can then be related to methods for potential storage of light energy.