Results 41 to 50 of about 10,794 (262)
Infrared Spectra and Vapor Pressures of Crystalline C2N2, with Comparisons to Crystalline HCN
The Planetary Science Journal, 2023 In a continuation of our work on nitriles, we have examined cyanogen (C _2 N _2 ) as a crystalline solid, comparing the results to our recent work on crystalline hydrogen cyanide (HCN).
Reggie L. Hudson, Perry A. Gerakines
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Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices
The Astrophysical Journal Letters, 2023 The ortho-to-para ratio (OPR) of formaldehyde (H _2 CO) has been used as a probe to estimate the formation temperature of molecules in interstellar, circumstellar, and cometary environments, relying on the assumption that nuclear spin conversion is ...
K. M. Yocum +4 more
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α-enhanced astrochemistry: The carbon cycle in extreme galactic conditions
Monthly notices of the Royal Astronomical Society, 2023 Astrochemistry has been widely developed as a power tool to probe physical properties of the interstellar medium (ISM) in various conditions of the Milky Way (MW) Galaxy, and in near and distant galaxies.
T. Bisbas +10 more
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Prompt, 2018 A major challenge in teaching is helping students integrate course concepts to understand the big picture of a field and apply those concepts in new situations.
Olivia H. Wilkins, Camillus F. Buzard
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The Planetary Science Journal, 2023 Infrared (IR) spectra are needed for both laboratory and observational studies of extraterrestrial ices, both within the solar system, such as for trans-Neptunian objects, comets, and Titan, and in the interstellar medium.
Reggie L. Hudson, Perry A. Gerakines
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Molecules, 2023 A microwave-promoted multicomponent reaction of isatins, α-amino acids and 1,4-dihydro-1,4-epoxynaphthalene is achieved under environmentally friendly conditions, delivering oxygen-bridged spirooxindoles within 15 min in good to excellent yields.
Yaojing Shi, Hua Zhao, Yufen Zhao
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Astrochemistry: A Summary [PDF]
Proceedings of the International Astronomical Union, 1987 A summary is given of the presentations delivered at IAU Symposium 231.
openaire +4 more sources
Anatomy of Orion Molecular Clouds—The Astrochemistry Perspective/Approach
Frontiers in Astronomy and Space Sciences, 2021 The Orion molecular cloud (OMC) complex is the nearest and perhaps the best-studied giant molecular cloud complex within which low-mass and massive star formation occur. A variety of molecular species, from diatomic molecules to complex organic molecules
Dipen Sahu, Sheng-Yuan Liu, Tie Liu
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Gliding on Ice in Search of Accurate and Cost-Effective Computational Methods for Astrochemistry on Grains: The Puzzling Case of the HCN Isomerization [PDF]
Journal of Chemical Theory and Computation, 2022 The isomerization of hydrogen cyanide to hydrogen isocyanide on icy grain surfaces is investigated by an accurate composite method (jun-Cheap) rooted in the coupled cluster ansatz and by density functional approaches.
Carmen Baiano +3 more
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Design and implementation of a new apparatus for astrochemistry: Kinetic measurements of the CH + OCS reaction and frequency comb spectroscopy in a cold uniform supersonic flow. [PDF]
Journal of Chemical PhysicsWe present the development of a new astrochemical research tool, HILTRAC, the Highly Instrumented Low Temperature ReAction Chamber. The instrument is based on a pulsed form of the CRESU (Cinétique de Réaction en Écoulement Supersonique Uniforme, meaning ...
D. I. Lucas +3 more
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