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Electrochemical investigation of structurally varied azinium scaffolds.
Rak, Kamil; Klikar, Milan; Buresová, Zuzana; Mazúr, Petr; Mikesová, Michaela; Kvícala, Jaroslav; Bures, Filip.
Afiliação
  • Rak K; Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic. filip.bures@upce.cz.
  • Klikar M; Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic. filip.bures@upce.cz.
  • Buresová Z; Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic. filip.bures@upce.cz.
  • Mazúr P; Department of Chemical Engineering, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Prague, 16628, Czech Republic.
  • Mikesová M; Department of Chemical Engineering, Faculty of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, Prague, 16628, Czech Republic.
  • Kvícala J; Department of Organic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, Prague, 16628, Czech Republic.
  • Bures F; Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic. filip.bures@upce.cz.
Org Biomol Chem ; 19(40): 8830-8839, 2021 Oct 20.
Article em En | MEDLINE | ID: mdl-34554164
Inspired by the successful utilization of aziniums as anolytes in redox-flow batteries, we have designed and prepared a systematically extended series of (di)azinium compounds based on pyrazine, bipyridine, 1,5-naphthyridine, 3,8-phenanthroline, (E)-4,4'-diazastilbene and 1,2-bis(pyridin-4-yl)acetylene. It has been revealed that the fundamental electrochemical properties are affected mostly by the water-solubility and chemical stability of the particular redox forms. Based on the systematically evolved azinium structure and gathered electrochemical data, structure-property relationships were thoroughly elucidated. Further investigation on flow battery cells identified that the known 4,4'-bipyridinium decorated with two peripheral N-propyl-3-sulfonato pendants allows utilizing both redox steps with good cycling stability, while the naphthyridine scaffold turned out to be a new and promising scaffold for redox-flow batteries.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Org Biomol Chem Assunto da revista: BIOQUIMICA / QUIMICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: República Tcheca País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Org Biomol Chem Assunto da revista: BIOQUIMICA / QUIMICA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: República Tcheca País de publicação: Reino Unido