Water formation on bare grains: When the chemistry on dust impacts interstellar gas [PDF]
, 2010 Context. Water together with O2 are important gas phase ingredients to cool dense gas in order to form stars. On dust grains, H2 O is an important constituent of the icy mantle in which a complex chemistry is taking place, as revealed by hot core observations. The formation of water can occur on dust grain surfaces, and can impact gas phase composition.
Akai +53 more
arxiv +6 more sources
Protonated α-N-Acetyl Galactose Glycopeptide Dissociation Chemistry
Journal of the American Society for Mass Spectrometry, 2022 We recently provided mass spectrometric, H/D labeling, and computational evidence of pyranose to furanose N-acetylated ion isomerization reactions that occurred prior to glycosidic bond cleavage in both O- and N-linked glycosylated amino acid model ...
Jordan M. Rabus +5 more
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Dissociative recombination as primary dissociation channel in plasma chemistry [PDF]
Journal of Physics: Conference Series, 2009 Molecule formation, surface modification and deposition in plasmas can in first order be described as dissociation in the plasma and association of fragments at the surface. In active plasmas ionization and dissociation by electrons is accompanied by excitation.
D.C. Schram +3 more
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TEACHING OF THE THEORY OF ELECTROLYTIC DISSOCIATION IN HIGH SCHOOL CHEMISTRY [PDF]
School Science and Mathematics, 1921 n ...
Wm. H. Brown
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Dissociative Recombination: building and destroying aspects in interstellar chemistry [PDF]
Journal of Physics: Conference Series, 2011 We discuss the ionic composition of the interstellar molecular gas. Particular emphasis is put on the halogenic ions such as H2Cl+ and H2F+ for which no DR studies have been published up to now.
E. Roueff, Eric Herbst
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Non-Boltzmann Vibrational Energy Distributions and Coupling to Dissociation Rate [PDF]
Journal of Chemical Physics, 2019 In this article, we propose a generalized model for nonequilibrium vibrational energy distribution functions. The model can be used, in place of equilibrium (Boltzmann) distribution functions, when deriving reaction rate constants for high-temperature nonequilibrium flows.
Narendra Singh, T. Schwartzentruber
arxiv +3 more sources
Nonadiabatic QED correction to the dissociation energy of the hydrogen molecule [PDF]
Phys. Rev. Lett. 122, 103003 (2019), 2018 The quantum electrodynamic correction to the energy of the hydrogen molecule has been evaluated without expansion in the electron-proton mass ratio. The obtained results significantly improve the accuracy of theoretical predictions reaching the level of 1 MHz for the dissociation energy, in a very good agreement with the parallel measurement [H\"olsch ...
M. Puchalski +3 more
arxiv +3 more sources
PAH chemistry at eV internal energies. 2. Ring alteration and dissociation [PDF]
Molecular Astrophysics, 2017 65 pages, accepted by Molecular ...
Georges Trinquier +3 more
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From quantum chemistry to dissociation kinetics: what we need to know [PDF]
Molecular Physics, 2014 The relationship between rate constants for dissociation and the reverse association reactions and their potential energy surfaces is illustrated. The reaction systems e− + SF6 ↔ SF6− →SF5− + F, H + CH3 ↔CH4, 2 CF2 ↔ C2F4, H + O2 →HO2, HO + O ↔HO2 ↔ H + O2, and C + HO →CHO are chosen as representative examples.
Jürgen Troe
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Conformer-specific Infrared spectroscopy of cationic Criegee intermediates syn- and anti-CH3CHOO+ [PDF]
Nature CommunicationsCriegee intermediates are pivotal in atmospheric chemistry, yet their cationic forms remain poorly understood. This study presents the infrared spectra of cationic Criegee intermediates, specifically syn- and anti-CH3CHOO+, using vacuum ultraviolet ...
Ende Huang +9 more
doaj +2 more sources