Open AccessRelation between the spatial shape of excited molecular orbital and molecular-frame electron scattering cross section
Author(s) -
Noboru Watanabe,
So Yamada,
Masahiko Takahashi
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/14/142017
Subject(s) - molecular orbital , atomic physics , coincidence , electron , ion , excited state , electron scattering , scattering , physics , excitation , cross section (physics) , atomic orbital , chemistry , molecule , optics , nuclear physics , medicine , alternative medicine , pathology , quantum mechanics
Synopsis We report the molecular-frame electron scattering cross sections of the 2σ g →1π g excitation in O2 and N 2 , obtained using an electron-ion coincidence technique. The vector correlation between the scattered electron and the fragment ion has been measured at incident electron energy of 1.4 keV. The results exhibit clear molecular-orientation dependence reflecting the nodal structure of the 1π g orbital. It strongly suggests that the electron-ion coincidence technique can provide a powerful tool to investigate spatial shapes of unoccupied molecular orbitals.