H-bonded complexes of 2-aminopyrimidine-parabenzoquinone in an argon matrix

A. M. Plokhotnichenko, S. G. Stepanian, L. Adamowicz, V. A. Karachevtsev

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The IR spectroscopy method was used to study H-bonded complexes of 2-aminopyrimidine NH2Py with parabenzoquinon Qu in a low-temperature argon matrix. The IR absorption spectra of these compounds were obtained in the spectral range 400-3600 cm-1 at various concentration ratios at T = 11 K. The molar integral absorption coefficients in the bands of stretching vibrations of the free and H-bonded NH2 groups were determined. The quantum-mechanical calculations of the IR spectra of the NH2Py and Qu molecules and their dimers were performed. Comparison of the experimental and calculated data suggests that the NH2Py-Qu dimers in the argon matrix have a planar structure with two weak hydrogen bonds NH⋯O and CH⋯N.

Original languageEnglish (US)
Pages (from-to)201-213
Number of pages13
JournalFizika Nizkikh Temperatur
Issue number2
StatePublished - Feb 2006


  • 2-aminopyrimidine
  • Dimers
  • Hydrogen bond
  • IR spectra
  • Matrix isolation
  • Parabenzoquinone

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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