Journal of Chemical Physics, Vol.109, No.5, 1781-1786, 1998
Vacuum ultraviolet laser pulsed field ionization photoelectron studies of polyatomic species: Accurate ionization energies of CH3SH and CH3CH2SH
The vacuum ultraviolet (WV) pulsed field ionization photoelectron (PFI-PE) spectra for CH3SH and CH3CH2SH have been obtained near their ionization thresholds. Using a semiempirical simulation scheme, we have obtained satisfactory fits to fine structures resolved in the VUV-PFI-PE spectra, yielding accurate ionization energies of 76 256.3 +/- 2.9 cm(-1) (9.45458 +/- 0.00036 eV) and 74948.7 +/- 2.9 cm(-1)(9.29246 +/- 0.00036 eV) for CH3SH and CH3CH2SH respectively.