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Angle resolved photoelectron spectroscopy of CS/sub 2/ and COS measured as a function of photon energy from 21 to 70 eV

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:5115672
Data have been taken on both the partial cross sections and angular distribution parameters for the first five bands in CS/sub 2/ with a photon energy from 21 to 70 eV and for the first four bands of COS from 21 to 40 eV. The results are compared with calculations based on the multiple scattering method. In the case of photoionization of the 2..pi../sub g/ orbital of CS/sub 2/ and the 3..pi.. orbital of COS, the experimental results and calculations have been successfully explained in terms of the Cooper minimum. The behavior of the fifth band of CS/sub 2/ is accounted for by assigning it to a satellite peak arising from photoionization of the 2..pi../sub u/ orbital by way of configuration interaction. Comparison between the experimental results and calculations showed some problem areas, particularly with regard to the prediction of shape resonances, and suggestions are made for future improvement of the calculations.
Research Organization:
Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
OSTI ID:
5115672
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 77:4; ISSN JCPSA
Country of Publication:
United States
Language:
English