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Ionizing Radiation, an Instrument in Chemical Evolution Studies: Scope and Perspectives

机译:电离辐射,化学演化研究的一种工具:范围和观点

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The study of synthesis and stability of molecules in different environments it’s been part of chemistry evolution and origin of life studies for more than 70 years. Various kinds of ionizing radiation have been analyzed as possible sources of energy for the transformations undergone by the first organic molecules. Now experimental and computational simulation approaches continue with different groups of organic molecules, in search for more information that help us to understand and reconstruct somehow the mechanisms that toke place on early Earth and space. In that line, this paper presents first approach of keto acids stability to ionizing radiation, an interesting group of molecules involved in the Krebs cycle and glycolysis. Preliminary results obtained by HPLC/UV analysis of irradiating aqueous solutions of 5 keto acids ranging from 3 to 6 carbons with a 60Co gamma ray source, using doses up to 53 kGy, show different stabilities and a general tendency of shifting the keto-enol equilibrium to the enol tautomer before decomposition.
机译:对分子在不同环境中的合成和稳定性的研究已超过70年,是化学进化和生命起源研究的一部分。已经分析了各种电离辐射作为第一有机分子经历的转换的可能能量来源。现在,实验和计算模拟方法将继续使用不同种类的有机分子,以寻找更多信息,以帮助我们以某种方式理解和重建在地球和太空早期产生影响的机制。在那条线中,本文介绍了酮酸稳定性对电离辐射的第一种方法,这是一种与克雷布斯循环和糖酵解有关的有趣分子。通过HPLC / UV分析使用60Coγ射线源辐照5个碳原子范围为3至6个碳的5种酮酸的水溶液所获得的初步结果,使用剂量最高为53 kGy,显示出不同的稳定性和改变酮-烯醇平衡的一般趋势分解前加入烯醇互变异构体。

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