Cross sections for elastic electron collisions with tetrahydrofuran

Homem, M. G. P.; Sugohara, R. T.; Sanches, I. P.; Lee, M. T.; Iga, I.

doi:10.1103/physreva.80.032705

Cited by 33 publications

(45 citation statements)

References 35 publications

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“…Further, the scattered intensities are converted to absolute DCS using the relative-flow technique (RFT) [21] according to the procedure described in Refs. [14,17,20], The application of RFT requires precise determination of the relative flows for both DMS and the secondary standards. They were measured according to the procedure described in Ref.…”

Section: Methodsmentioning

confidence: 99%

“…The DCS was measured using the same experimental setup and procedure presented in several previous works [14][15][16][17][18][19][20], Briefly, the intensities of the elastically scattered electrons were measured using a crossed electron-beam-molecularbeam geometry. The scattered electrons are energy filtered by a retarding-field energy analyzer with a resolution of about 1.5 eV.…”

Section: Methodsmentioning

confidence: 99%

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Theoretical and experimental investigation of electron collisions with dimethyl sulfide

et al. 2015

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We report a joint theoretical-experimental investigation of elastic electron scattering by dimethyl sulfide in the low-and intermediate-energy regions. More specifically, experimental differential, integral, and momentumtransfer cross sections are given in the 30-800 eV and 10°-130° ranges. Theoretical cross sections are reported in the 1-500 eV interval. The experimental differential cross sections were determined using a crossed electronbeam-molecular-beam geometry, whereas the absolute values of the cross sections were obtained using the relative-flow technique. Theoretically, a complex optical potential was used to represent the collision dynamics, and a single-center expansion method combined with the Pade approximant method was used to solve the scattering equations. Our experimental data are in good agreement with the present calculated data but strongly disagree with those reported in a previous investigation.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Theoretical and experimental investigation of electron collisions with dimethyl sulfide

et al. 2015

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“…Thus, largely due to the biological significance of deoxyribose, a number of studies have been undertaken to investigate electron interactions with the deoxyribose analogue molecules: tetrahydrofuran (THF), tetrahydrofurfuryl alcohol (THFA), and 3-hydroxytetrahydrofuran (3HTHF). These include measurements of elastic DCSs for THF, [11][12][13][14] THFA, 15 and 3HTHF. 16,17 Total cross sections for electron and positron scattering from THF, [18][19][20] 3HTHF, 21 and THFA (Refs.…”

Section: Introductionmentioning

confidence: 99%

Dynamical (e,2e) studies of tetrahydrofurfuryl alcohol

Bellm

Builth-Williams

Jones

et al. 2012

The Journal of Chemical Physics

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Cross section data for electron scattering from DNA are important for modelling radiation damage in biological systems. Triply differential cross sections for the electron impact ionization of the highest occupied outer valence orbital of tetrahydrofurfuryl alcohol, which can be considered as an analogue to the deoxyribose backbone molecule in DNA, have been measured using the (e,2e) technique. The measurements have been performed with coplanar asymmetric kinematics at an incident electron energy of 250 eV, an ejected electron energy of 20 eV, and at scattered electron angles of −5 • , −10 • , and −15 • . Experimental results are compared with corresponding theoretical calculations performed using the molecular 3-body distorted wave model. Some important differences are observed between the experiment and calculations.

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“…The total electron scattering cross sections were reported by Zecca et al [9], Mozejko et al [10] and Fuss et al [11]. The elastic scattering in various energy ranges was probed by Milosavljević et al [12], Dampc et al [13], Allan [14], Colyer et al [15], Baek et al [16], Chiari et al [17] and Homem et al [18]. The vibrational excitation cross sections were reported by Dampc et al [19] and Allan [14] and electronic excitation was probed by Do et al [20] and Giuliani et al [21].…”

Section: Introductionmentioning

confidence: 99%

Partial cross sections for dissociative electron attachment to tetrahydrofuran reveal a dynamics-driven rich fragmentation pattern

Janečková

May

Milosavljević

et al. 2014

International Journal of Mass Spectrometry

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We report partial absolute cross sections for dissociative electron attachment (DEA) to tetrahydrofuran C 4 H 8 O. The high sensitivity of the present setup, quantitative DEA spectrometer with time-of-flight analyzer, led to identification of a number of previously unreported fragments (CH 2− ) thus revealing complex dissociation dynamics of the involved resonant states. The chemical composition of fragment anions was assigned by experiments with completely deuterated tetrahydrofuran. We also show that the dominant heavy anionic fragment with m/z = 41 is C 3 H 5 − anion rather than C 2 HO − as reported in the previous studies, in spite of the fact that formation of the latter one is energetically more favorable. The dynamics on the resonant state is thus more decisive for the reaction outcome than the asymptotic energetics. The assignment of resonances and their dynamic pathways is discussed by using comparison with recent complementary experiments that characterize electronic states of neutral and ionic tetrahydrofuran.

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Cross sections for elastic electron collisions with tetrahydrofuran

Cited by 33 publications

References 35 publications

Theoretical and experimental investigation of electron collisions with dimethyl sulfide

Theoretical and experimental investigation of electron collisions with dimethyl sulfide

Dynamical (e,2e) studies of tetrahydrofurfuryl alcohol

Partial cross sections for dissociative electron attachment to tetrahydrofuran reveal a dynamics-driven rich fragmentation pattern

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