Synthesis and properties of paramagnetic derivatives of linear and fused polyaromatic compounds

E. V. Tretyakov, T. V. Novikova, V. V. Korolev, O. M. Usov, S. F. Vasilevsky, Yu N. Molin

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6 Citations (Scopus)


Paramagnetic derivatives of tolan, anthracene, and terphenyl of the A - Sp - R ̇ type, where A is an aromatic group, R ̇ is a stable radical center, and Sp is a spacer, were synthesized. The electronic absorption and luminescence spectra of these compounds were examined. The introduction of the paramagnetic dihydroimidazole fragment causes a decrease (10 - 500-fold) in the quantum yield of luminescence compared to emission of the individual aromatic luminophore. The presence of a radical center (R ̇ ) in the (alkane) ̇+ / A - Sp - R ̇ radical-ionic pair leads to the disappearance or fast (nanoseconds) damping of the magnetic effect of luminescence arising upon recombination of these pairs.

Original languageEnglish
Pages (from-to)1409-1414
Number of pages6
JournalRussian Chemical Bulletin
Issue number8
Publication statusPublished - 1 Jan 2000
Externally publishedYes



  • Alkynes
  • Anthracene
  • Luminescence
  • Magnetic effects
  • Nitroxyl radicals
  • Radical ions
  • Terphenyl
  • Tolan

ASJC Scopus subject areas

  • Chemistry(all)

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