THE X-RAY EXCITED AUGER-ELECTRON SPECTRUM OF NO AND POTENTIAL CURVES AND PHOTODISSOCIATION OF THE NO2+ ION

A study of the NO2+ ion by means of Auger spectroscopy, fast ion beam laser spectroscopy and ab initio calculations is reported. The photon induced Auger spectrum of NO was recorded. Potential curves for a numb er of electronic states of NO2+ were calculated by the complete active space SCF method in order to facilitate an analysis of the Auger spec trum. A photoabsorption spectrum of NO2+ was observed by means of phot ofragment kinetic energy spectroscopy and assigned to the A (2)PI <-- X (2)SIGMA+ transition. The two different experimental methods both gi ve a value of 38.6 eV for the appearance energy of NO2+, which is enti rely consistent with recent photoionization and double charge transfer results.