June 20, 2022

On the Radiolysis of Ethylene Ices by Energetic Electrons and Implications to the Extraterrestrial Hydrocarbon Chemistry

Authors: L. Zhou, S. Maity, M. Abplanalp, A. Turner, R.I. Kaiser 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 generated in the track of galactic cosmic ray particles. A combination of Fourier transform infrared spectrometry (solid state) and…

zach Uncategorized 0 58 sec read
June 20, 2022

Spectroscopic investigations of high-energy-density plasma transformations in a simulated early reducing atmosphere containing methane,

Authors: M. Civiš, M. Ferus, A. Knížek, P. Kubelik, M. Kamas, P. Španel, K. Drahina, V. Shestivska, L. Juha, P. Skrehot, V. Laitl, S. Civiš Large-scale plasma was created in gas mixtures containing methane using high-power laser-induced dielectric breakdown (LIDB). The composition of the mixtures corresponded to a cometary and/or meteoritic impact into the early atmosphere of either Titan or…

zach Uncategorized 0 51 sec read
June 20, 2022

Abiotic synthesis of amino acids by x-ray irradiation of simple inorganic gases

Authors: Jun-ichi Takahashi, Teruo Hosokawa, Hitomi Masuda, Takeo Kaneko, Kensei Kobayashi, Takeshi Saito, Yuichi Utsumi 1–2 keV x-ray irradiation was carried out using a synchrotron radiation source on simulated primitive earth environment: a gas mixture of carbon monoxide, nitrogen, and water at atmospheric pressure. High-speed liquid chromatography of the hydrolyzed product solution detected amino acids. The amount of amino acids…

zach Uncategorized 0 34 sec read
June 20, 2022

Pulse Radiolysis of Liquid Amides

Authors: N. Hayashi, E. Hayon, T. Ibata, N. N. Lichtin, A. Matsumoto The pulse radiolysis of the following liquid amides has been investigated: formamide (F), N-methylformamide (NMF), Ar,Ar-dimethylformamide (DMF), AqAr-dimethylacetamide (DMA), and Ar-methylpropionamide (NMP). Radiation-induced ionization and excitation processes have been observed on irradiation of solu- tions of anthracene (A) and naphthalene (N), as indicated by the characteristic spectra of…

zach Uncategorized 0 46 sec read
June 20, 2022

Radiolysis of methanol vapour

Authors: J. H. Baxendale, R.D. Sedgwick The yields of hydrogen, formaldehyde, ethylene glycol, methane and carbon monoxide from the radiolysis of methanol vapour have been measured and also those of H2 and HD from CH3OD. These have been correlated with the ions observed in the mass spectra. Benzene decreases the yields of hydrogen and formaldehyde and the effect is attributed…

zach Uncategorized 0 49 sec read
June 20, 2022

Radiolysis of Aqueous Solutions Containing Nitric Oxide and Aliphatic Alcohols

Authors: T. W. Woodward, H. C. Sutton Aliphatic alcohols increase the yields of N2O observed in the radiolysis of NO solutions and are oxidized to the corresponding aldehyde in the process. The following reactions occur in addition to those previously suggested 1 for the NO radiolysis: OH+ROH → H2O+˙ROH ˙ROH+3NO → N2O+HNO2+R˙= 0(aldehyde) where R = Me, Et, i-Pr. https://doi.org/10.1039/TF9666200070

zach Uncategorized 0 17 sec read
June 20, 2022

Radiolysis of Aqueous Solutions of Ammonium Bicarbonate Over A Large Dose Range

Authors: Z. D. Draganić , A. Negrón-Mendoza, K. Sehested, S.I. Vujošević, R. Navarro-Gonzáles, M. G. Albarrán-Sanchez, I. G. Draganić Oxygen-free aqueous solutions of 0.05 mol dm^(-3) ammonium and sodium bicarbonate were studied after receiving various doses of 60Co gammas (0.01-400kGy) or 0.5-20Gy pulses of 10Mev electrons. Formate and oxalate were found to be the main radiolytic products, in addition to…

zach Uncategorized 0 46 sec read

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