Spectroscopic studies of the SO2 discharge system. II. Microwave spectrum of the SO dimer
摘要:
Microwave spectra assignable to a dimer of SO have been detected in an electric discharge of SO2. A centrifugal distortion analysis has been carried out on the spectra from the ground state and the lowest excited vibrational state of 16O32S32S16O and the ground vibrational state of 16O32S34S16O. The molecule was found to have a planar cis configuration with the following geometry: r(SO)=1.458(2) Å, rs(SS)=2.0245(6) Å, and ∠SSO=112.7(5)o. The observed dipole moment of OSSO is μ=3.17(10) D.
Photoionization efficiency spectrum and ionization energy of S2O2
作者:Bing-Ming Cheng、Wen-Ching Hung
DOI:10.1063/1.478094
日期:1999.1
The spectrum of photoionization efficiency (PIE) of S2O2 was measured in the spectral range 105–130 nm by means of a discharge flow and a photoionization mass spectrometer coupled to a synchrotron as a radiation source. S2O2 was generated from self reaction of SO radicals, SO+SO→S2O2, in a gaseous flow system. SO radicals were produced on reacting O atoms with CS2 and OCS. The ionization energy (IE) of S2O2 was determined to be (9.93±0.02) eV.