KLL AUGER AND X-RAY PHOTOELECTRON-SPECTRA OF PHOSPHINE, SOME PHOSPHORUS HALIDES AND THE OTHER HYDRIDES ISOELECTRONIC WITH ARGON

KL2L3(1D2) Auger and 1s photoelectron energies have been measured for molecular hydrides isoelectronic with Argon (HCl, H2S, PH3 and SiH4). In addition a detailed comparison of Auger and photoelectron shifts in a series of phosphorus halides (vs phosphine) has been undertaken using additional P2p binding energies. The potential model is better able to predict 1s binding energy shifts with either ground state or relaxation corrected models than the 2p shifts. These latter values seem also to be reduced by shielding effects. In general, fluorides are better predicted than chlorides. Auger shifts correlate linearly(but not in a 1:1 relationship) with 1s photoelectron shifts throughout the isoelectronic series and also in the case of the phosphorus fluorides and phosphine. The two potential models, however, provide poor prediction of Auger shifts. © 1979.