Comparison of FT Raman spectra of some 5-nitroquinoxalines and their electropolymers

J. Hrdlička, P. Matějka, R. Volf, K. Volka, V. Král, A. C. Try, J. L. Sessler

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

FT Raman spectroscopy was used to characterize a set of five newly synthesized 5-nitroquinoxaline derivatives 2,3-disubstituted with 2-pyrrolyl, 2-furyl, 2-thienyl, phenyl and 2-pyridyl groups. Afterwards the 5-nitroquinoxalines were electrochemically reduced to 5-aminoquinoxalines and electropolymerized as films on the Pt electrode coated with porous Au. Comparing the SERS spectra of polymers with the Raman spectra of monomers, a mechanism of polymerization has been suggested. Specific spectral and electrochemical properties of films based on pyrrole substituted 5-aminoquinoxaline were verified by electropolymerization of 2,3-dipyrrol-2′yl-5-nitroquinoxaline without a reduction step.

Original languageEnglish
Pages (from-to)101-105
Number of pages5
JournalJournal of Molecular Structure
Volume565-566
DOIs
Publication statusPublished - 30 May 2001

Keywords

  • Electropolymerization
  • FT-Raman spectroscopy
  • SERS
  • Surface films

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