Results 91 to 100 of about 10,581 (275)
Effects of turbulent dust grain motion to interstellar chemistry
, 2015 Theoretical studies have revealed that dust grains are usually moving fast through the turbulent interstellar gas, which could have significant effects upon interstellar chemistry by modifying grain accretion.
Ge, J. X., He, J. H., Yan, H. R.
core +1 more source
Astrochemistry and Observations [PDF]
, 1997 8 pages, 6 figures in text, From Fourth Cologne-Bonn-Zermatt-Symposium, The Dense Interstellar Matter in ...
openaire +3 more sources
Solid-state production of complex organic molecules: H-atom addition versus UV irradiation [PDF]
, 2018 Complex organic molecules (COMs) have been observed in comets, hot cores and cold dense regions of the interstellar medium. It is generally accepted that these COMs form on icy dust grain through the recombination reaction of radicals triggered by either
Chuang, K. -J.
core +3 more sources
Redefining proton affinity for heteronuclear molecular species: quantum chemical insights
Discover ChemistryOne of the main problems with experimental methods for detecting proton affinity (PA) is that they cannot perform site-specific protonation. For heteronuclear molecular species that have two or more protonation sites, the experimental PA measurement only
E. E. Etim +6 more
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Proton and Electron Irradiations of CH4:H2O Mixed Ices
Atoms, 2023 The organic chemistry occurring in interstellar environments may lead to the production of complex molecules that are relevant to the emergence of life. Therefore, in order to understand the origins of life itself, it is necessary to probe the chemistry ...
Duncan V. Mifsud +9 more
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Molecules, 2023 The C3H3NO family of isomers is relevant in astrochemistry, even though its members are still elusive in the interstellar medium. To identify the best candidate for astronomical detection within this family, we developed a new computational protocol ...
Silvia Alessandrini +4 more
doaj +1 more source
Refit to numerically problematic UMIST reaction rate coefficients
, 2011 Aims. Chemical databases such as the UMIST Database for Astrochemistry (UDFA) are indispensable in the numerical modeling of astrochemical networks.
Baulch +10 more
core +1 more source
The Astrophysical Journal LettersHydrogen cyanide (HCN) molecules serve as an important tracer for the chemical evolution of elemental nitrogen in the regions of star and planet formation.
Maksim Ozhiganov +10 more
doaj +1 more source
Phenyl Radical Activates Molecular Hydrogen Through Protium and Deuterium Tunneling
Angewandte Chemie International Edition, Volume 63, Issue 51, December 16, 2024.Activating the strong H2 bond is typically reserved for transition metals, and only a few main group systems can tackle this challenge. Here, we explore a phenyl radical mediated pathway utilizing the photolysis of iodobenzene. The phenyl radical leverages the high C−H bond energy of the forming benzene to drive H2 activation.
Virinder Bhagat +2 more
wiley +1 more source
Rotational Spectroscopy of PAHs: Acenaphthene, Acenaphthylene and Fluorene
, 2005 Pure rotational spectra of three polycyclic aromatic hydrocarbons - acenaphthene, acenaphthylene and fluorene - have been obtained by Fourier transform microwave spectroscopy of a molecular beam and subsequently by millimeter wave absorption spectroscopy
Gottlieb, C. A. +4 more
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