EXPERIMENTAL AND THEORETICAL-STUDY OF THE PHOTOIONIZATION AND DISSOCIATIVE PHOTOIONIZATIONS OF CARBON-TETRACHLORIDE

The photoionization and dissociative photoionizations of carbon tetrac hloride have been studied both experimentally and theoretically. In ex periments, we have combined the techniques of synchrotron radiation, m olecular beam and mass spectrometry to obtain the photoionization effi ciency spectra for CCl3+, CCl2+, CCl+, C+ and Cl+. Thus we have measur ed the appearance energies of these ion fragments, which in turn lead to the various dissociation energies (Do) for CCln+ and CCln. Computat ionally, we have also obtained the D-0 values by the ab initio Gaussia n-2 method. The two sets of D-0 values are in good agreement with each other.