New assignment of 14N NQR spectral lines for tetrazoles derivatives

Sultonazar Mamadazizov, Marina Shelyapina, Galina Kupriyanova, George Mozzhukhin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

In recent years, considerable interest has been shown in the study of tetrazole derivatives, which attract attention as highly nitrogenous compounds for use as an isosteric substitutes for various functional groups that leads to creation of novel biologically active substances. NQR techniques, being sensitive to the local environment of 14N nuclei, provide great opportunities to study these new substances. To make investigation of complex compounds containing tetrazoles derivatives easier and more reliable a correctly assigned 14N NQR spectra of tetrazoles are required. Here we report on the results of our DFT B3LYP calculations of 14N NQR spectral parameters (quadrupole coupling constant Q cc and the asymmetry parameter of the electric field gradient η) for tetrazole, 5-aminotetrazole and 5-aminotetrazole monohydrate. It has been found that the commonly accepted assignment of the 14N NQR spectral lines for these molecules is incorrect. A new assignment for these molecules is proposed.

Original languageEnglish
Pages (from-to)52-60
Number of pages9
JournalChemical Physics
Volume506
Early online date27 Mar 2018
DOIs
StatePublished - 27 Apr 2018

Scopus subject areas

  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Keywords

  • 5-aminotetrazole monohydrate
  • DFT calculations
  • N Nuclear Quadrupole Resonance
  • Tetrazole
  • 14N Nuclear Quadrupole Resonance
  • N-14 Nuclear Quadrupole Resonance
  • 1H-TETRAZOLE
  • ACID
  • OPTICAL-PROPERTIES
  • CORROSION
  • NUCLEAR-QUADRUPOLE RESONANCE
  • ELECTRONIC-STRUCTURE

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