Chemical evolution encompasses the formation of biologically relevant compounds started from simple inorganic molecules and promoted by an energy input. Among the possible energy sources for these processes is radioactivity. This research is done in this framework, and it is aimed to study the effect of ionizing radiation on oxygen-free, aqueous solutions of ammonium succinate. Particularity is concerned with the stability this compound in an aqueous medium and the presence of high radiation fields and comparing it with the behavior of succinic acid. Succinic acid and its ammonium salt are molecules formed readily in prebiotic experiments and are essential in chemical evolution processes, as participants in metabolic pathways, and as starting material for more complex molecules. Several products were detected, including some containing-N compounds and the formation can be explained via the attack of the radiolytic products of water. The abstraction and dimerization reactions were the more important. The decomposition increased with the irradiation dose given rise to biologically relevant compounds.
This work was supported by d PAPIIT grant No. IN IN111116.