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Formation of complex organic molecules in methanol and methanol-carbon monoxide ices exposed to ionizing radiation--a combined FTIR and reflectron time-of-flight mass spectrometry study.
TLDR
The results of this study provide crucial information on the formation of a variety of classes of organics including alcohols, ketones, aldehydes, esters, ethers, and sugars within the bulk ices upon exposure to ionizing radiation that are relevant to the molecular clouds within the interstellar medium.
Synthesis of prebiotic glycerol in interstellar ices.
Contemporary mechanisms for the spontaneous formation of glycerol have not been able to explain its existence on early Earth. The exogenous origin and delivery of organic molecules to early Earth
Radiation-induced formation of chlorine oxides and their potential role in the origin of Martian perchlorates.
TLDR
Higher irradiation doses support the facile production of ClO3- and ClO2-bearing high-order chlorine oxides, which are attributed to the potential origin of perchlorates as found on Mars.
FORMATION OF KETENE (H2CCO) IN INTERSTELLAR ANALOGOUS METHANE (CH4)-CARBON MONOXIDE (CO) ICES: A COMBINED FTIR AND REFLECTRON TIME-OF-FLIGHT MASS SPECTROSCOPIC STUDY
The formation of ketene (H2CCO) in methane-carbon monoxide (CH4-CO) ices was investigated upon its exposure to ionizing radiation in the form of energetic electrons at 5.5 K. The radiation-induced
Infrared and reflectron time-of-flight mass spectroscopic study on the synthesis of glycolaldehyde in methanol (CH3OH) and methanol-carbon monoxide (CH3OH-CO) ices exposed to ionization radiation.
TLDR
Temperature programmed desorption studies revealed an increase in the amount of glycolaldehyde formed, suggesting further thermal chemistry of trapped radicals within the ice matrix, and coupled techniques provide clear, concise evidence of the formation of a complex and astrobiologically important organic, Glycolaldehyde, relevant to the icy mantles observed in the interstellar medium.
A π-stacked phenylacetylene dimer.
TLDR
The structure of the phenylacetylene-dimer has been elucidated using IR-UV double resonance spectroscopy in combination with high level ab initio calculations at the CCSD(T)/CBS level and the observed IR spectra are consistent with the anti-parallel π-stacked structure.
On the radiolysis of ethylene ices by energetic electrons and implications to the extraterrestrial hydrocarbon chemistry
The chemical processing of ethylene ices (C2H4) by energetic electrons was investigated at 11 K to simulate the energy transfer processes and synthesis of new molecules induced by secondary electrons
Infrared and reflectron time-of-flight mass spectroscopic analysis of methane (CH4)-carbon monoxide (CO) ices exposed to ionization radiation--toward the formation of carbonyl-bearing molecules in
TLDR
The present experiments provide clear evidence for the formation of key organic molecules--acetaldehyde, acetone, and potentially vinylalcohol--which are among the 15 carbonyl containing organic molecules detected in the interstellar medium.
Infrared-optical double resonance spectroscopic measurements and high level ab initio calculations on a binary complex between phenylacetylene and borane-trimethylamine. Understanding the role of
TLDR
The structure of the binary complex between phenylacetylene and borane-trimethylamine has been elucidated using IR-UV double resonance spectroscopy and high level ab initio calculations at the CCSD(T) level to provide reliable estimates for the interaction energy and free energy.
Phenylacetylene: a hydrogen bonding chameleon.
TLDR
The structures of several binary complexes of phenylacetylene investigated using infrared optical double-resonance spectroscopy in combination with high-level ab initio methods are reviewed.
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