Chirped pulse Fourier transform microwave spectroscopy of 1,1,2,2-tetrafluoro-3-iodopropane

Abstract

The pure rotational spectra of the two lowest energy conformers of 1,1,2,2-tetrafluoro-3-iodopropane have been investigated between the frequency limits of 7.5 and 16 GHz using chirped pulse Fourier transform microwave spectroscopy. Quantum chemical calculations have been performed to aid the spectral analyses. For the trans–trans conformer, which is calculated to be the lowest in energy, a total of 135 transitions were recorded. For the gauche–gauche conformer a total of 286 transitions were recorded. In both cases the complete iodine nuclear quadrupole coupling tensor has been determined.

Keywords:

• rotational spectroscopy
• microwave spectroscopy
• chirped pulse
• 1,1,2,2-tetrafluoro-3-iodopropane
• iodine hyperfine structure

Acknowledgements

This work has been supported by a National Science Foundation Chemistry Research Instrumentation and Facilities: Instrument Development (CRIF:ID) award, CHE-0820833, and also a University of North Texas Faculty Research Grant.

Notes

†Retired.

Additional information

Notes on contributors

W.C. Bailey†

†Retired.