Authors: M. Ferus, P. Kubelík, A. Knízek, A. Pastorek, J. Sutherland, S. Civiš Recent results in prebiotic chemistry implicate hydrogen cyanide (HCN) as the source of carbon and nitrogen for the synthesis of nucleotide, amino acid and lipid building blocks. HCN can be produced during impact events by reprocessing of carbonaceous and nitrogenous materials from both the impactor and the…
Authors: W. Wang, M. N. Schuchmann, Vinzens Bachler, H. Schuchmann, C. Sonntag Hydroxymethyl radical•CH2OH and its radical anion •CH2O- (pKa 10.7) were generated pulse-radiolytically in N2O-saturated aqueous solutions of methanol. The overall decay is by second-order kinetics. At pH ≤ 8 (•CH2OH, 2k = 1.7 × 109 dm3 mol-1 s-1), one observes ethylene glycol and formaldehyde plus methanol in a…
Authors: I. A. Taub, L. M. Dorfman The radiation chemistry of deaerated aqueous ethanol and deaerated liquid ethanol has been studied by the pulse radiolysis technique. The same transient absorption spectrum, showing a broad weak absorption at about 290 mU and stronger narrow peaks at 266, 257 and 247 mU, has been observed in both systems. It is concluded that…
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
Authors: M. Simic, P. Neta, E. Hayon A detailed pulse radiolysis study of aqueous solutions of methanol, ethanol, isopropyl alcohol, n-, iso-, and t-butyl alcohols, neopentanol, and eyelohexanol has been carried out. Optical absorption spectra of some of the transients have been measured down to 210 nm. Similar spectra were obtained in liquid methanol, ethanol, and isopropyl alcohol. Absorption maxima…