Monomer and polymer quinoxaline derivatives for cationic recognition

H. Březnová, R. Volf, V. Král, J. L. Sessler, A. C. Try, T. V. Shishkanova*

*Corresponding author for this work

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Abstract

Monomeric and polymeric 5-nitroquinoxaline derivatives disubstituted in the 2 and 3 positions with 2-pyrrolyl (A), 2-furyl (B) and 2-thienyl (C) groups were prepared and characterized. The substituted 5-nitroquinoxalines were used as active components in poly(vinyl chloride)-membrane and electropolymerized electrodes that were then tested as possible sensors for various cationic species. In contrast to the difurylnitroquinoxaline-based systems, the monomeric and polymeric dipyrrolyl- and dithienylquinoxaline electrodes displayed a good selectivity for Ag+ ions, providing a near-Nernstian response in the 10-5 to 10-2 mol L-1 concentration range. The similar potentiometric behavior displayed by the monomeric and polymeric forms of systems A and C supports the contention that the main binding modes displayed by the monomeric forms are retained in the corresponding polymeric structures.

Original languageEnglish
Pages (from-to)1193-1198
Number of pages6
JournalAnalytical and bioanalytical chemistry
Volume375
Issue number8
DOIs
Publication statusPublished - Apr 2003

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Keywords

  • Cationic selectivity
  • Ion-selective electrode
  • Nitroquinoxaline

Cite this

Březnová, H., Volf, R., Král, V., Sessler, J. L., Try, A. C., & Shishkanova, T. V. (2003). Monomer and polymer quinoxaline derivatives for cationic recognition. Analytical and bioanalytical chemistry, 375(8), 1193-1198. https://doi.org/10.1007/s00216-003-1816-2