Results 11 to 20 of about 302,506 (166)

Hydrogen transfer reactions of interstellar complex organic molecules [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Radical recombination has been proposed to lead to the formation of complex organic molecules (COMs) in CO-rich ices in the early stages of star formation. These COMs can then undergo hydrogen addition and abstraction reactions leading to a higher or lower degree of saturation.
Álvarez-Barcia, S.   +3 more
openaire   +3 more sources

Interferometric Observations of Complex Organic Molecules [PDF]

open access: yesProceedings of the International Astronomical Union, 2005
Rich molecular complexity has been shown to exist in star forming regions primarily through millimeter to submillimeter single-dish spectral line surveys or searches over the years. With a few case studies, we demonstrate that interferometric observations are a powerful tool for advancing our knowledge of the chemical processes related to the formation
openaire   +1 more source

Astrochemical Pathways to Complex Organic and Prebiotic Molecules: Experimental Perspectives for In Situ Solid-State Studies

open access: yesLife, 2021
A deep understanding of the origin of life requires the physical, chemical, and biological study of prebiotic systems and the comprehension of the mechanisms underlying their evolutionary steps.
Daniele Fulvio   +3 more
doaj   +1 more source

Complex Organic Molecules in a Very Young Hot Corino, HOPS 373SW

open access: yesThe Astrophysical Journal, 2023
We present the spectra of complex organic molecules (COMs) detected in HOPS 373SW with the Atacama Large Millimeter/submillimeter Array (ALMA). HOPS 373SW, which is a component of a protostellar binary with a separation of 1500au, has been discovered as ...
Jeong-Eun Lee   +8 more
doaj   +1 more source

Recent research progress on crystallization strategies for difficult-to-crystallize organic molecules

open access: yesResults in Chemistry, 2023
Both natural organic products and complex compounds synthesized by organic chemists often contain many stereochemical configurations, so the identification of their structures and their absolute configurations are very important.
Heng Li, Yi Li, Jianmin Jiao, Chen Lin
doaj   +1 more source

Formation of Complex Organic Molecules on Interstellar CO Ices? Insights from Computational Chemistry Simulations

open access: yesThe Astrophysical Journal, 2023
The carbon ( ^3 P) atom is a reactive species that, according to laboratory experiments and theoretical calculations, condensates with interstellar ice components.
Stefano Ferrero   +4 more
doaj   +1 more source

Formation of Interstellar Complex Organic Molecules on Water-rich Ices Triggered by Atomic Carbon Freezing

open access: yesThe Astrophysical Journal, 2023
The reactivity of interstellar carbon atoms (C) on water-dominated ices is one of the possible ways to form interstellar complex organic molecules (iCOMs). In this work, we report a quantum chemical study of the coupling reaction of C ( ^3 P) with an icy
Stefano Ferrero   +4 more
doaj   +1 more source

THE ORIGIN OF COMPLEX ORGANIC MOLECULES IN PRESTELLAR CORES

open access: yesThe Astrophysical Journal, 2014
Complex organic molecules (COMs) have been detected in a variety of environments, including cold prestellar cores. Given the low temperature of these objects, these last detections challenge existing models. We report here new observations towards the prestellar core L1544.
Vastel, C.   +3 more
openaire   +4 more sources

Quantum chemical prediction for complex organic molecules [PDF]

open access: yesInternational Journal of Quantum Chemistry, 2017
AbstractNumerous types of quantum chemical calculations and protocols have been successfully applied to computing of small, uncomplicated organic molecules. Here, we argue for the need to shift attention to more challenging molecules that are marked by an interplay of complicating factors such as conformational, tautomeric, steric, and other effects.
Dean M. Philipp   +4 more
openaire   +1 more source

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