DEEXCITATION ELECTRON-SPECTROSCOPY OF CORE-EXCITED NO

The electron-electron coincidence method has been used to measure the deexcitation electron spectra of core-excited nitric oxide. Comparison of the deexcitation spectra with Auger spectra reveals the importance of participator and spectator decay in each case. Term splittings in the core-excited molecule and selection rules for Auger decay play important roles in simplifying the deexcitation spectra. Analysis of the spectra reveals that the core hole valence interaction is larger for nitrogen than for oxygen. As a result, the level orderings in the two core-excited molecules, N*O and NO*, are different.