Incorporating radical substituents into organic conducting materials is predicted to lead to novel phenomena including modified conductivity and magnetoresistance. We are using palladium catalyzed coupling reactions to link iodophenylverdazyl free radicals with phenylene diamines giving novel redox active molecules that may also be models for larger oligomeric and polymeric systems. Studies so far indicate a close match between oxidation potentials of the radical and diamine core, leading to an unsual temperature dependent switching between electronic structures. We anticipate that this will lead to further novel phenomena when applied to more extended systems.

Radical substituted phenylene diamines and oligoanilines: Models for organic spintronic systems

255th National Meeting (2018)

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