Electron transmission spectroscopy of matrix-isolated N2

Abstract

Pseudovibrational levels of the 2Πg state of N−2 are detected via electron transmission through solid xenon films doped with varying concentrations of nitrogen molecules. The resonance is found to produce a significant increase in transmitted current arising from electrons having lost energy to vibrational excitation. The relaxation shifts of the anion in condensed N2 (0.7 eV), argon (0.83 eV), and xenon (1.45 eV) are discussed and compared with calculations made within the framework of the Mott–Littleton and Born models.