论文部分内容阅读
以前研究表明,在γ辐解KCN稀水溶液时,刺迹和整体溶液中存在自由基复合,在通常条件下观测到的生物分子种类和数量很少。大气放电所引发的原始大气反应的化学作用的基本过程与电离辐射类似。一般认为,原始大气反应生成的HCN部分按Strecker反应合成氨基酸,另一部分随降雨过程进入海洋或其它水体,进而以各种可能的途径演化成生命的基础分子。考虑到原始海洋条件下(pH8—8.5,温度0—100℃),加入水体的HCN可能部分重返大气层并参与由放电或太阳辐射等能源引起的古生物化学过程。本工作以HCN-H_2O气体混合物为起始反应物质,模拟研究大气放电转变HCN为生命分子的可能性。
Previous studies have shown that in the γ-irradiation KCN dilute aqueous solution, there is free radical recombination in the spikes and the overall solution, the species and the number of biomolecules observed under normal conditions is small. Atmospheric discharge caused by the reaction of the original atmospheric chemical reaction of the basic process similar to ionizing radiation. It is generally believed that the HCN part generated by the reaction of the original atmosphere synthesizes the amino acid according to the Strecker reaction and the other part enters the sea or other water bodies during the rainfall and then evolves into the basic molecules of life in various possible ways. Taking into account the original ocean conditions (pH8-8.5, temperature 0-100 ℃), HCN added to the water body may partially return to the atmosphere and participate in paleobiochemical processes caused by energy such as discharge or solar radiation. In this work, HCN-H_2O gas mixture was taken as the starting material to simulate the possibility of atmospheric discharge switching HCN as a life molecule.