In Situ Spectroelectrochemical Investigations of RuII Complexes with Bispyrazolyl Methane Triarylamine Ligands

Carol Hua, Brendan F. Abrahams, Floriana Tuna, David Collison, Deanna M D'Alessandro

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The synthesis and characterization of two triarylamine ligands, 4-(di(1H-pyrazol-1-yl)methyl)-N-(4-(di(1H-pyrazol-1-yl)methyl)phenyl)-N-phenylaniline (TPA-2bpm) and tris(4-(di(1H-pyrazol-1-yl)methyl)phenyl)amine (TPA-3bpm), containing the bispyrazolylmethane moiety and its RuII terpyridine complexes are presented. The redox properties of the ligands and RuII complexes are explored in detail through cyclic and square-wave voltammetry in addition to in situ UV-vis-near infrared, electron paramagnetic resonance, and fluorescence spectroelectrochemistry. It was demonstrated that the triarylamine radical cation was able to be generated, and further, TPA-2bpm underwent an electrochemically induced dimerization process.

    Original languageEnglish
    Pages (from-to)546-555
    Number of pages10
    JournalAustralian Journal of Chemistry
    Volume70
    Issue number5
    Early online date1 Feb 2017
    DOIs
    Publication statusPublished - 2017

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