Regular Article

Low-energy electron elastic scattering from ethylene oxide and thiirane

¹ College of Physics and Materials Science, Henan Normal University, Xinxiang 453007, P.R. China
² Science and Technology on Plasma Physics Laboratory, Laser Fusion Research Center, CAEP, Mianyang 621900, P.R. China

^a e-mail: e-mail: wangkd@htu.cn

Received: 25 December 2017
Received in final form: 11 March 2018
Published online: 30 April 2018

Abstract

We present elastic integral cross sections for electron collisions with ethylene oxide and thiirane. The calculations were performed with R-matrix method in the static-exchange and static exchange polarization approximations for electron energies ranging from 0.01 to 15 eV. We found two shape resonances in the ²B₁ and ²B₂ symmetry in each molecule. We also detected one shape resonance in the ²A₁ symmetry for thiirane. The positions of the resonances agree well with available results. We shed some light on the nature of the resonances of these two compounds together with molecular orbital calculations. The similarities and differences among the resonances are discussed.