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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Low to intermediate energy elastic electron scattering from dichloromethane (CH2Cl2)

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Author(s):
Hlousek, B. A. [1] ; Martin, M. F. [1] ; Zawadzki, M. [1, 2] ; Khakoo, M. A. [1] ; Machado, L. E. [3] ; Lucchese, R. R. [4] ; da Mata, V. A. S. [5] ; Iga, I. [5] ; Lee, M-T [5] ; Homem, M. G. P. [5]
Total Authors: 10
Affiliation:
[1] Calif State Univ Fullerton, Dept Phys, Fullerton, CA 92834 - USA
[2] Gdansk Univ Technol, Atom Phys Div, Dept Atom Mol & Opt Phys, Fac Appl Phys & Math, Ul G Narutowicza 11-12, PL-80233 Gdansk - Poland
[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[4] Texas A&M Univ, Dept Chem, College Stn, TX 77842 - USA
[5] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 5
Document type: Journal article
Source: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS; v. 52, n. 2 JAN 28 2019.
Web of Science Citations: 1
Abstract

We report a theoretical-experimental investigation of electron scattering by dichloromethane (CH2Cl2 ) in the low- and intermediate energy ranges. Experimental elastic differential cross sections (DCS), in the incident electron energy range of 0.5-800 eV and scattering angle range of 10 degrees-130 degrees, were measured using a crossed beam relative flow technique. Integral and momentum transfer cross sections were determined from the experimental DCS. Theoretical elastic differential, integral, and momentum-transfer, as well as grand-total, and total absorption cross sections were also calculated for impact energies ranging from 0.5 to 500 eV. A complex optical Hartree-Fock potential represented the electron-target interaction and a single-center expansion method combined with a Pade approximation was used to solve the scattering equations. Three resonances: a (2)A(1) C-Cl k sigma{*} resonance centered at about 3.5 eV, a B-2(2) C-Cl k sigma{*} resonance centered at about 5 eV and a broad (2)A(1) C-H k sigma{*} resonance at about 10 eV were detected in our calculation. Further calculations of DCS were performed at an intermediate energy range of 50-800 eV, using the independent-atom model in which the atomic complex optical potential and partial-wave method were used to obtain atomic scattering amplitudes. Comparisons of our experimental and theoretical data with very recent experimental and theoretical results are made. (AU)

FAPESP's process: 15/08258-2 - Cross sections for the interaction of electrons with volatile organic molecules
Grantee:Manoel Gustavo Petrucelli Homem
Support Opportunities: Regular Research Grants