Results 31 to 40 of about 8,526 (198)
Molecules, 2023 AlF is a relevant molecule in astrochemistry as a tracer of F-bearing molecules. Additionally, AlF presents diagonal Franck-Condon factors and can be created very efficiently in the lab, which makes it a prototypical molecular for laser cooling. However,
Weiqi Wang +2 more
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Geochemistry of the cretaceous-tertiary transition boundary at Blake Nose (N. W. Atlantic): Cosmogenic Ni [PDF]
Journal of the Serbian Chemical Society, 2004 The Cretaceous-Tertiary (KT) boundary transition at the Blake Nose Plateau recovered by ODP Leg 171B (site 1049, hole A, core 17X, section 2) contains an ejecta bed (thickness ca. 17 cm) marking a late Cretaceous asteroid impact.
Premović Pavle I. +3 more
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The astrochemistry of life [PDF]
Astronomy and Geophysics, 2001 There are many unanswered astronomical questions about the chemical basis of life; a meeting held in August this year by the Astrophysical Chemistry Group of the RAS and the Royal Society of Chemistry took as its starting point the understanding of a number of questions, and reviews of progress towards the answers, report Anita Richards and Peter Sarre.
Anita M. S. Richards, Peter J. Sarre
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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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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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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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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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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 brief summary of the content of the papers comprising the symposium is presented.
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Exploring outer space biophysical phenomena via SpaceLID
Scientific Reports, 2023 Extensive investigations in outer space have revealed not only how life adapts to the space environment, but also that interesting biophysical phenomena occur. These phenomena affect human health and other life forms (animals, plants, bacteria, and fungi)
Shanshan Wang +6 more
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