Electron Momentum Spectroscopy Investigation on Electronic Structure of Iso-dichloroethylene Valence Shell |
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Authors: | Yi-chun Wang Shan-shan Niu Ya-guo Tang Yu Zhang Xu Shan Chun-kai Xu Xiang-jun Chen |
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Institution: | Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
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Abstract: | Here an electron momentum spectroscopy study on the electronic structure of valence shell of iso-dichloroethylene molecule is reported. The experiment is carried out with a binary (e, 2e) spectrometer at incident electron energy of 1200 eV, employing noncoplanar symmetric arrangement. The binding energy spectra and electron momentum distributions (EMDs) of iso-dichloroethylene valence shell have been obtained. Theoretical EMDs are predicted with both Hartree-Fock and density functional theory methods, generally indicating good agreements with the measurement results. The interference effect is observed to significantly influence the EMDs of 2a2 and 5b2 Cl lone-pair orbitals. |
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Keywords: | Electron momentum spectroscopy Valence orbital Lone-pair orbital Interference effect |
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