The structure of uracil: A laser ablation rotational study

Vanesa Vaquero, Maria Eugenia Sanz, Juan C. Lopez, Jose L. Alonso*

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

67 Citations (Scopus)

Abstract

The jet-cooled rotational spectrum of uracil has been investigated using laser ablation molecular beam Fourier transform microwave (LA-MB-FTMW) spectroscopy. The quadrupole structure originated by the two N-14 nuclei of uracil has been completely resolved and assigned. This provides a definitive method to establish the pyrrolic or pyrimidinic nature of the N nuclei and allows us to conclude that the observed tautomer of uracil in the gas phase is the diketo form. From the rotational constants of the isotopic species detected, a structure of uracil has been determined.

Original languageEnglish
Pages (from-to)3443-3445
Number of pages3
JournalJOURNAL OF PHYSICAL CHEMISTRY A
Volume111
Issue number18
DOIs
Publication statusPublished - 10 May 2007

Keywords

  • TRANSFORM MICROWAVE SPECTROMETER
  • GAS-PHASE STRUCTURE
  • SPECTRUM
  • SHAPE
  • ALANINE
  • N-14

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