Results 61 to 70 of about 10,661 (258)
Electron irradiation and thermal chemistry studies of interstellar and planetary ice analogues at the ICA astrochemistry facility [PDF]
European Physical Journal D : Atomic, Molecular and Optical Physics, 2021 The modelling of molecular excitation and dissociation processes relevant to astrochemistry requires the validation of theories by comparison with data generated from laboratory experimentation.
D. Mifsud +12 more
semanticscholar +1 more source
Three-body aggregation of guest molecules as a key step in methane hydrate nucleation and growth
Communications Chemistry, 2022 Gas hydrates have an important role in environmental and astrochemistry, as well as energy materials, but the hydrate nucleation process is not fully understood.
Wenfeng Hu +9 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2021 Small, inorganic hydrides are likely hiding in plain sight, waiting to be detected toward various astronomical objects. AlH2OH can form in the gas phase via a downhill pathway, and the present, high-level quantum chemical study shows that this molecule ...
Alexandria G. Watrous +2 more
doaj +1 more source
ACS Earth and Space Chemistry, 2022 Silicates are ubiquitously found as small dust grains throughout the universe. These particles are frequently subject to high-energy processes and subsequent condensation in the interstellar medium (ISM), where they are broken up into many ultrasmall ...
Joan Mariñoso Guiu +5 more
semanticscholar +1 more source
Fate of the Gas-Phase Reaction Between Oxirane and the CN Radical in Interstellar Conditions
Frontiers in Astronomy and Space Sciences, 2021 The escalating identification of new complex molecules in the interstellar medium claims for potential formation routes of such species. In this regard, the present work considers the reaction between oxirane and the CN radical as a feasible formation ...
Silvia Alessandrini +2 more
doaj +1 more source
Complex Organic Matter Synthesis on Siloxyl Radicals in the Presence of CO
Frontiers in Chemistry, 2021 Heterogeneous phase astrochemistry plays an important role in the synthesis of complex organic matter (COM) as found on comets and rocky body surfaces like asteroids, planetoids, moons and planets. The proposed catalytic model is based on two assumptions:
Marco Fioroni, Nathan J. DeYonker
doaj +1 more source
Cretaceous-Tertiary boundary deposits in Denmark: A diachroneity [PDF]
Journal of the Serbian Chemical Society, 2004 The lateral distribution of predominantly terrestrial kerogen or humics enriched with copper(II) porphyrins (Cu-P) across the Danish marine basin implies that the alleged Cretaceous-Tertiary (KT) boundary deposits in western Denmark (at the Nye Kløv ...
Premović Pavle I.
doaj +1 more source
Interstellar dimethyl ether gas-phase formation: a quantum chemistry and kinetics study [PDF]
, 2018 Dimethyl ether is one of the most abundant interstellar complex organic molecules. Yet its formation route remains elusive. In this work, we have performed electronic structure and kinetics calculations to derive the rate coefficients for two ion ...
Balucani, Nadia +6 more
core +3 more sources
Astrochemistry of dust, ice and gas: introduction and overview
, 2014 A brief introduction and overview of the astrochemistry of dust, ice and gas and their interplay is presented, aimed at non-specialists. The importance of basic chemical physics studies of critical reactions is illustrated through a number of recent ...
van Dishoeck, Ewine F.
core +1 more source
Mechanisms of Electron-Induced Chemistry in Molecular Ices
Atoms, 2022 Electron-induced chemistry is relevant to many processes that occur when ionizing radiation interacts with matter. This includes radiation damage, curing of polymers, and nanofabrication processes but also the formation of complex molecules in molecular ...
Fabian Schmidt +5 more
doaj +1 more source