Ligand design modulates photoinduced properties of cobalt-dioxolene valence tautomers

Magnetic and EPR data suggest the occurrence of photoinduced Valence Tautomerism in a cobalt(III)-polydioxolene polymer. The 1D nature of the system results in a larger amount of cooperativity than previously observed in monomers. Analysis of kinetics data further suggest the existence of a relaxation mechanisms based on phonon assisted tunnelling.