Amine-based organic high-spin systems: Synthesis, electrochemical and spectroscopic studies of polyalkylated one-dimensional oligoaryl triamines

A polyalkylated triamine, 2,2′,4,4′-tetrabromo-4″-methyl-5,5′-bis(di(3,4-di-methylphenyl)amino)triphenylamine, was designed and successfully synthesized as a model precursor for purely organic cationic high-spin systems. Cyclic voltammetry measurement revealed that the triamine gives stable mono- and dicationic states and fairly unstable tricationic state. Novel electron transfer stopped-flow (ETSF) methods were invoked for characterizing the absorption spectra of the corresponding mono- and oligo-cationic states. The triplet state of the dication was confirmed by ESR spectroscopy.

A polyalkylated oligoaryl triamine was designed and synthesized as a precursor of positively charged high-spin systems. The electrochemical and spectroscopic properties were examined.Figure optionsDownload as PowerPoint slide