No abstract

The recent photoelectron spectroscopy (PES) paper by Wang, et al. confirms our earlier photoionization mass spectrometric (PIMS) determination of the adiabatic ionization energy of NO3. The PES results are also consistent with our conclusion that the ground-state neutral geometry for NO3 is D3h. However, the PE spectrum shows a second band (and higher bands) with a vertical I.E. (ionization energy) at 13.18 eV that was absent in our photoionization efficiency spectrum. A possible reason for the apparent discrepancy is suggested and further differences between the two studies are discussed.