Results 91 to 100 of about 21,113 (164)

Energy dependence of the differential photoelectron cross sections of molecular nitrogen [PDF]

, 1978
The angular distribution of photoelectron intensity for molecular nitrogen was studied using He I and Ne I resonance line discharge light sources. Studies of photoelectron angular distributions covering a range of photon energies, and thus a range of ...
Kuppermann, Aron, Mintz, Donald M.
core  

Ring Opening upon Valence Shell Excitation in β-Butyrolactone: Experimental and Theoretical Methods

Molecules
The valence-shell electronic state spectroscopy of β-butyrolactone (CH3CHCH2CO2) is comprehensively investigated by employing experimental and theoretical methods.
Pedro A. S. Randi, Márcio H. F. Bettega, Nykola C. Jones, Søren V. Hoffmann, Małgorzata A. Śmiałek, Paulo Limão-Vieira   +5 more
doaj   +1 more source

Electron recombination of rotationally cold D2H+ ions

Nature Communications
Dissociative recombination (DR) of electrons with small molecular ions is a fundamental process for the physics and chemistry of the interstellar medium and planetary atmospheres.
A. Znotins, A. Faure, C. H. Greene, M. Grieser, F. Grussie, L. W. Isberner, Á. Kálosi, V. Kokoouline, D. Müll, D. Paul, M. Pezzella, D. W. Savin, S. Schippers, J. Tennyson, A. Wolf, O. Novotný, H. Kreckel   +16 more
doaj   +1 more source

Theoretical studies of important processes in planetary and comet atmospheres [PDF]

Dissociative recombination (DR) reactions in planetary and comet atmospheres are discussed. A computer program was developed which determines DR cross sections and rates using potential curves and electronic capture widths.
Guberman, Steven L.
core   +1 more source

R-Matrix Calculation of Electron Collision with the BeO⁺ Molecular Ion

Atoms
We report here an R-matrix study of electron collision with the BeO+ molecular ion in its X 2Π ground state and at a single bond length, namely its equilibrium Re=2.7023 a0.
Nilanjan Mukherjee, Abhijit Bhattacharyya, Kalyan Chakrabarti   +2 more
doaj   +1 more source

SF₆ Negative Ion Formation in Charge Transfer Experiments

Molecules
In the present work, we report an update and extension of the previous ion-pair formation study of Hubers, M.M.; Los, J. Chem. Phys. 1975, 10, 235–259, noting new fragment anions from time-of-flight mass spectrometry.
Sarvesh Kumar, Masamitsu Hoshino, Boutheïna Kerkeni, Gustavo García, Ghofrane Ouerfelli, Muneerah Mogren Al-Mogren, Paulo Limão-Vieira   +6 more
doaj   +1 more source

Vibrationally-dependent molecular dynamics in mutual neutralisation reactions of molecular oxygen ions

Nature Communications
Product distributions and dynamics of low-collision-energy mutual neutralisation reactions involving even simple molecular ions are largely unknown. Reactions which involve oxygen ions, e.g., $${{{\rm{O}}}}_{2}^{+}$$ O 2 + with O−, are expected to be ...
Mathias Poline, Arnaud Dochain, Stefan Rosén, MingChao Ji, Henrik Cederquist, Henning Zettergren, Henning T. Schmidt, Mats Larsson, Shaun G. Ard, Nicholas S. Shuman, Albert A. Viggiano, Richard D. Thomas   +11 more
doaj   +1 more source

Cyclohexane Vibronic States: A Combined VUV Spectroscopy and Theoretical Study

Molecules
In this work, we provide results from a joint experimental and theoretical study of the vibronic features of cyclohexane (C6H12) in the photon energy range of 6.8–10.8 eV (182–115 nm).
Edvaldo Bandeira, Alessandra S. Barbosa, Nykola C. Jones, Søren V. Hoffmann, Márcio H. F. Bettega, Paulo Limão-Vieira   +5 more
doaj   +1 more source

Symmetry Breaking in the Lowest-Lying Excited-State of CCl₄: Valence Shell Spectroscopy in the 5.0–10.8 eV Photon Energy Range

Molecules
We report absolute high-resolution vacuum ultraviolet (VUV) photoabsorption cross-sections of carbon tetrachloride (CCl4) in the photon energy range 5.0–10.8 eV (248–115 nm).
Luiz V. S. Dalagnol, Sarvesh Kumar, Alessandra S. Barbosa, Umma S. Akther, Nykola C. Jones, Søren V. Hoffmann, Márcio H. F. Bettega, Paulo Limão-Vieira   +7 more
doaj   +1 more source

High-Resolution Vacuum Ultraviolet Photoelectron Spectroscopy

CHIMIA, 2001
The development of narrow bandwidth tunable laser systems in the vacuum ultraviolet region of the electromagnetic spectrum and of new experimental methods has recently enabled a significant improvement in the resolution that can be achieved by ...
Urs Hollenstein, Bethany Brupbacher-Gatehouse, Gregory M. Greetham, Stefan Willitsch, Patrick Rupper, Andrea Wüest, Marcel Sommavilla, Andreas Osterwalder, Robert Seiler, Frédéric Merkt   +9 more
doaj