Electron scattering from alkenes in the energy range 200–4500 eV

Wickramarachchi, P.; Palihawadana, Prasanga; Villela, Gilberto; Ariyasinghe, W.M.

doi:10.1016/j.nimb.2009.07.017

Cited by 12 publications

(12 citation statements)

References 19 publications

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“…Sueoka and Mori reported TCS for ethylene between 1 to 400 eV using retarding potential time of flight method. Nishimura and Tawara, Ariyasinghe and Powers, Szmtkowski et al and Wickramarachchi et al measured TCS for the incident energies 4–500 eV, 0.6–370 eV, 200–1400 eV and 200–4500 eV, respectively, in linear transmission experimental setup. In the theoretical front Lunt et al and Schneider et al used Complex Kohn variational calculations for TCS in the energy range 0–6 eV and 0–5.5 eV, respectively.…”

Section: Introductionmentioning

confidence: 99%

Total scattering cross sections for ethylene by electron impact for incident electron energies from 1 to 2000 eV

Naghma

Antony

2013

Int. J. Quantum Chem.

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We report total scattering cross sections for C2H4 molecule by electron impact. Calculations are performed by using two different quantum mechanical methods and they cover the energy range from 1 to 2000 eV. For low energy calculations up to 15 eV, UK molecular R‐matrix code through QUANTEMOL‐N software is used, while intermediate to high energy (15–2000 eV) calculations were carried out by applying spherical complex optical potential formalism. Comparison is made with earlier measurements and theoretical data wherever available. A shape resonance is detected around 2 eV due to the 2B2g symmetry of an electronic state that corresponds to the temporary negative ion formation of ethylene. The differential cross sections are also calculated for the energy range from 1 to15 eV for the scattering angles between 0º and 180º. © 2013 Wiley Periodicals, Inc.

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Section: Introductionmentioning

confidence: 99%

Total scattering cross sections for ethylene by electron impact for incident electron energies from 1 to 2000 eV

Naghma

Antony

2013

Int. J. Quantum Chem.

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“…All these data will be compared against the present results later in this paper. Finally, for completeness, we also note the experimental total cross section measurements for electron-C 2 H 4 scattering from Sueoka and Mori, 48 Szmytkowski et al, 49 and Wickramarachchi et al 50 While these works are perhaps not strictly relevant to the focus of this paper, total cross sections represent the sum of all the integral cross sections for the elastic and inelastic (including the ã 3 B 1u ) scattering processes and so therefore serve as a useful independent cross check for the validity of those data.…”

Section: Introductionmentioning

confidence: 99%

Electron impact excitation of the ã 3B1u electronic state in C2H4: An experimentally benchmarked system?

Thao

Nixon

Fuß

et al. 2012

The Journal of Chemical Physics

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We report on differential and integral cross section measurements for the electron impact excitation of the lowest-lying triplet electronic state (ã 3B1u) in ethylene (C2H4). The energy range of the present experiments was 9 eV–50 eV, with the angular range of the differential cross section measurements being 15°–90°. As the ground electronic state of C2H4 is a 1Ag state, this singlet → triplet excitation process is expected to be dominated by exchange scattering. The present angular distributions are found to support that assertion. Comparison, where possible, with previous experimental results from the University of Fribourg group shows very good agreement, to within the uncertainties on the measured cross sections. Agreement with the available theories, however, is generally marginal with the theories typically overestimating the magnitude of the differential cross sections. Notwithstanding that, the shapes of the theoretical angular distributions were in fact found to be in good accord with the corresponding experimental results.

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“…Molecular targets, and references in the text Baylor University, C2H4 (ethylene), C3H6 (propene), C4H8 (butene), C4H6 (1,3-butadiene) [144]; Waco, USA C2H2 (acetylene), C3H4 (propyne) [145] Gdańsk University HCOOH (formic acid) [86]; C4H4O (furan) [87]; C3H3NO (isoxazole) [90]; of Technology, C5H5N (pyridine) [107]; C5H10O (tetrahydropyran) [111]; Gdańsk, Poland (CH3)2CO (acetaldehyde) [116]; (CF3)2CO (hexafluoroacetone) [117]; X(CH3)4 (X=C,Si,Ge) [126]; SnCl4 [127]; C4H8 (1-butene, 2-methylpropene) [136]; C5H10 (1-pentene) [138]; C5H10 (2-methyl-2-butene), C6H12 (2,3-dimethyl-2-butene) [137]; C2H2 (acetylene), C4H6 (1-butyne) [139]; C4H6 (1,2-butadiene) [141]; C5H6 (2-methyl-1-buten-3-yne) [142]; C5H8 (2-methyl-1,3-butadiene) [143] Institute of Technology, N2 (nitrogen) [62]; O2 (oxygen) [71] Tokyo, Japan Instituto de Matemáticas N2 (nitrogen) [63]; CH2Cl2 (dichloromethane) [124] y Fisica Fundamental, C4H4S (thiophene) [88]; C5H4O2 (furfural) [89]; C4H8O (tetrahydrofuran) [94]; (CSIC), Madrid, Spain C6H6 (benzene) [98]; C6H5OH (phenol) [103]; C5H5N (pyridine) [105,106]; C4H4N2 (pyrimidine) [109]; C4H4N2 (pyrazine) [110]; C6H4O2 (para-benzoquinone) [112]; C4H3F7O (sevoflurane) […”

Section: Laboratorymentioning

confidence: 99%

“…Majority of recently measured total cross sections was obtained at low and low-intermediate energies. Wickramarachchi et al [144] measured electron-scattering TCSs for group of alkene molecules in the energy range from 200 to 4500 eV. Their experimental results were used as the basis for the development of an empirical expression for the energy variation of TCS for chain-like hydrocarbons with C-C single and C=C double bonds.…”

Section: High-intermediate Energiesmentioning

confidence: 99%

“…To account for the variation of TCS in the presence of triple bonded carbon atoms, Ariyasinghe and Vilela extended high-energy measurements of TCSs to simple alkynes (acetylene and propyne) [145]. Figure 25 collects TCS results from both experiments [144,145]. In the same figure earlier cross sections for acetylene and propyne [139,140,146,147], extending TCS towards lower energies (below 200 eV), are also depicted for comparison.…”

Section: High-intermediate Energiesmentioning

confidence: 99%

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Recent total cross section measurements in electron scattering from molecules

Szmytkowski

Możejko

2020

Eur. Phys. J. D

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The grand-total cross sections (TCSs) for electron scattering from a range of molecules, measured over the period 2009-2019 in various laboratories, with the use of different electron transmission systems, are reviewed. Where necessary, the presented TCS data are also compared to earlier results. Collection of investigated molecular targets (biomolecules, biofuels, molecules of technological application, hydrocarbons) reflects their current interest in biology, medicine, ecology and industry. Most of measurements covered the energy range from about 1 eV to some hundreds of eV, with a few exceptions extending those limits down to near thermal or up to almost high impact energies. The importance of reliable TCS data in the field of electron-scattering physics is emphasized. Problems encountered in TCS experiments are also specified.

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Electron scattering from alkenes in the energy range 200–4500 eV

Cited by 12 publications

References 19 publications

Total scattering cross sections for ethylene by electron impact for incident electron energies from 1 to 2000 eV

Total scattering cross sections for ethylene by electron impact for incident electron energies from 1 to 2000 eV

Electron impact excitation of the ã 3B1u electronic state in C2H4: An experimentally benchmarked system?

Recent total cross section measurements in electron scattering from molecules

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