A novel mononuclear complex of 4,4″-azobis-(2,2′-bipyridine) coordinated to tetracyanoruthenium(II) can behave as a “molecular switch”

Pedro O. Abate, Gaston Pourrieux, Faustino E. Morán Vieyra, Claudio D. Borsarelli, Teodor Parella, Mónica M. Vergara, Néstor E. Katz

    Research output: Contribution to journalArticleResearch

    3 Citations (Scopus)

    Abstract

    © 2019 Elsevier Ltd A novel tetracyanoruthenium(II) complex of formula K2[Ru(4,4″-azobpy)(CN)4], (1), with 4,4″-azobpy = 4,4″-azobis-(2,2′-bipyridine), has been synthesized and characterized by spectroscopic, electrochemical and photophysical techniques. The effects of reduction and protonation of the azo group of coordinated 4,4″-azobpy in the UV–Vis absorption and emission spectra of (1) were explored by spectroelectrochemical techniques and by addition of L-Cysteine. The behavior of (1) as a “molecular switch” could be explained with the aid of quantum–mechanical calculations by using density functional theory.
    Original languageEnglish
    Article number114149
    JournalPolyhedron
    Volume174
    DOIs
    Publication statusPublished - 1 Dec 2019

    Keywords

    • Azobipyridines
    • L-Cysteine detection
    • Molecular switches
    • Proton-coupled electron transfer
    • Ruthenium cyanides

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