We report an electron momentum spectroscopy study of vibrational effects on the electron momentum distributions for the outer valence orbitals of C2H4 and CH2F2. The symmetric noncoplanar (e,2e) experiment has been conducted at impact energy of 1.2 keV. Furthermore, a theoretical method of calculating electron momentum distributions has been developed with vibrational effects being involved. The experimental and theoretical results for these molecules strongly suggest that vibrational effects on electron momentum distributions tend to be appreciable for non-total symmetry molecular orbitals delocalized over some equivalent CH-bond sites.
|Journal of Physics: Conference Series
|Published - 2015 Sept 7
|29th International Conference on Photonic, Electronic and Atomic Collisions, ICPEAC 2015 - Toledo, Spain
Duration: 2015 Jul 22 → 2015 Jul 28