Results 1 to 10 of about 31,202 (209)

Interstellar Benzene Formation Mechanisms via Acetylene Cyclotrimerization Catalyzed by Fe+ Attached to Water Ice Clusters: Quantum Chemistry Calculation Study [PDF]

open access: goldMolecules, 2022
Benzene is the simplest building block of polycyclic aromatic hydrocarbons and has previously been found in the interstellar medium. Several barrierless reaction mechanisms for interstellar benzene formation that may operate under low-temperature and low-
Tatsuhiro Murakami, Toshiyuki Takayanagi
doaj   +2 more sources

Discovery of Interstellar Propylene (CH_2CHCH_3): Missing Links in Interstellar Gas-Phase Chemistry [PDF]

open access: bronze, 2007
We report the discovery of propylene (also called propene, CH_2CHCH_3) with the IRAM 30-m radio telescope toward the dark cloud TMC-1. Propylene is the most saturated hydrocarbon ever detected in space through radio astronomical techniques.
C. Thum   +10 more
core   +6 more sources

Unraveling sulfur chemistry in interstellar carbon oxide ices

open access: greenNature Communications, 2022
The authors report photolytic H atom transfer reactions of HOSO• in astronomical CO & CO2 ices, forming reactive acyl radicals & molecular complexes with SO & SO2.
Xiaolong Li   +7 more
doaj   +2 more sources

Interstellar chemistry of nitrogen hydrides in dark clouds [PDF]

open access: bronze, 2013
The aim of the present work is to perform a comprehensive analysis of the interstellar chemistry of nitrogen, focussing on the gas-phase formation of the smallest polyatomic species and in particular nitrogen hydrides.
Faure, Alexandre   +5 more
core   +5 more sources

Interstellar Water Chemistry: From Laboratory to Observations

open access: yesChemical Reviews, 2013
Water is observed throughout the universe, from diffuse interstellar clouds to protoplanetary disks around young stars, and from comets in our own solar system and exoplanetary atmospheres to galaxies at high redshifts.
E F van Dishoeck   +2 more
exaly   +3 more sources

Interstellar Turbulence II: Implications and Effects

open access: yesAnnual Review of Astronomy and Astrophysics, 2004
Interstellar turbulence has implications for the dispersal and mixing of the elements, cloud chemistry, cosmic ray scattering, and radio wave propagation through the ionized medium.
John Scalo, Bruce G Elmegreen
exaly   +4 more sources

Methanetetrol and the final frontier in ortho acids [PDF]

open access: yesNature Communications
The rapid dissociation of methanetetrol (C(OH)4) has been suggested as an impediment to its observation, despite the stability of its substituted derivative orthocarbonates (C(OR)4).
Joshua H. Marks   +10 more
doaj   +2 more sources

A sensitivity analysis of interstellar ice chemistry in astrochemical models

open access: diamondAstronomy & Astrophysics
Context. Astrochemical models are essential to bridging the gap between the timescales of reactions, experiments, and observations. The ice chemistry in these models is faced with a significant computational complexity given the many parameters required ...
Dijkhuis Tobias M.   +3 more
doaj   +3 more sources

Computational investigation of spin-resolved energy landscapes of FeC4H2+ and their astrochemical implications [PDF]

open access: yesFrontiers in Chemistry
The enduring enigma of iron depletion in the interstellar medium serves as a compelling impetus for an in-depth exploration of iron-bearing molecular species.
Shilpa Shajan   +2 more
doaj   +2 more sources

The simplest iminophosphane HPNH and its photoisomerization to aminophosphinidene H2NP [PDF]

open access: yesNature Communications
As a heavy analogue of dinitrogen, the diatomic phosphorus mononitride (PN) was the first detected phosphorus-containing compound in the interstellar medium.
Junjie Jiang   +5 more
doaj   +2 more sources

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