TY - JOUR
T1 - Photoionization spectra and ionization energies of HSCl, HSSSH, SSCl, and HSSCl formed in the reaction system Cl/Cl2/H2S
AU - Eberhard, Jürg
AU - Chen, Wei Chen
AU - Yu, Chin Hui
AU - Lee, Yuan-Pern
AU - Cheng, Bing Ming
PY - 1998/4/15
Y1 - 1998/4/15
N2 - Photoionization-efficiency (PIE) spectra in the wavelength range 110-140 nm were measured for products of the reaction system Cl/Cl2/H2S in a discharge-flow reactor coupled to a photoionization mass spectrometer employing a synchrotron as source of radiation. According to PIE spectra of HSCl, HSSSH, SSCl, and HSSCl, obtained for the first time, the ionization energies (IE) derived are (9.887±0.016), ≤9.09, (9.04±0.03), and (9.266±0.014) eV, respectively. Ab initio calculations of these IE with the GAUSSIAN-2 method agree well with experimental results. Other products observed in the system include S2, HSSH, S3, and SCl2. Their PIE spectra and IE were also measured; in some cases discrepancies with previous reports are found. The formation mechanism of the observed products is discussed.
AB - Photoionization-efficiency (PIE) spectra in the wavelength range 110-140 nm were measured for products of the reaction system Cl/Cl2/H2S in a discharge-flow reactor coupled to a photoionization mass spectrometer employing a synchrotron as source of radiation. According to PIE spectra of HSCl, HSSSH, SSCl, and HSSCl, obtained for the first time, the ionization energies (IE) derived are (9.887±0.016), ≤9.09, (9.04±0.03), and (9.266±0.014) eV, respectively. Ab initio calculations of these IE with the GAUSSIAN-2 method agree well with experimental results. Other products observed in the system include S2, HSSH, S3, and SCl2. Their PIE spectra and IE were also measured; in some cases discrepancies with previous reports are found. The formation mechanism of the observed products is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0001267584&partnerID=8YFLogxK
U2 - 10.1063/1.476026
DO - 10.1063/1.476026
M3 - Article
AN - SCOPUS:0001267584
SN - 0021-9606
VL - 108
SP - 6197
EP - 6204
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
IS - 15
ER -