Authors: L. Foo, A. Surànyi, A. Guljas, M. Szőri, J. J. Villar, B. Viskolcz, I. G. Csizmadia, A. Rágyanszki, B. Fiser Acetamide (C2H5NO) is the largest molecule containing a peptide bond, which is an amine (-NH2) group bonded to a carbonyl (C = O) group, that has yet been detected in interstellar medium (ISM). It is also considered to be…
Authors: R. A. Sanchez, J. P. Ferris, L. E. Orgel Cyanoacetylene is a major nitrogen-containing product of the action of an electric discharge on a mixture of methane and nitrogen. It reacts with simple inorganic substances in aqueous solution to give products including aspartic acid, asparagine, and cytosine. 10.1126/science.154.3750.784
Authors: L. M. Lara The vertical distribution of Titan’s neutral atmosphere compounds is calculated from a new photochemical model extending from 40 to 1432 km. This model makes use of many updated reaction rates, and of the new scheme for methane photolysis proposed by Mordauntet al. [1993].The model also includes a realistic treatment of the dissociation of N2, of the…
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…
The photochemistries of methane and HCN are discussed in the context of the primitive terrestrial atmosphere,using a detailed numerical model. In the absenceof abundant O2, absorption of solar EUV (λ < 1023Å) by N2 provides a large thermosphersic source of atomic nitrogen. Methane is oxidized cleanly and efficiently,provided CO2 is more abundant than CH,•. Otherwise,a large fraction of the methane…