Meteorites as Catalysts for Prebiotic Chemistry
Meteorites as Catalysts for Prebiotic Chemistry
复制标题
DOI：
10.1002/chem.201303690
复制
发表时间：
2013-12-09
影响因子：
4.3
通讯作者：
Di Mauro, Ernesto
中科院分区：
文献类型：
--
作者：
Saladino, Raffaele;Botta, Giorgia;Di Mauro, Ernesto
陨石晚期重撞击[1]是地球吸积后的重大事件。由撞击冲击驱动的有机合成的相关性首先由Chyba和Sagan在1992年提出，[2]基于当时可用的少量迹象。陨石对早期地球有机物库的贡献与这些陨石撞击后可能引起的合成相比如何？[2]在这里，我们报告了几种类型的陨石，[3a，B]铁，石铁，[3 B]陨石，[4]和无球粒陨石（表1中的entreis 1-12 [2，5]）在使用甲酰胺（NH 2CHO）热缩合的模型反应合成生物前感兴趣的有机分子中的催化作用。[6]NH 2CHO是宇宙中普遍存在的分子，在海尔-波普彗星[7]，恒星物体W33 A，[8] NGC 7538和W3 ACHTUNGTRENNUNG（H2O）[9]中被观察到，在星际物质中。
Meteorite late heavy bombardment [1] was a major event after the accretion of the earth. The relevance of organic syntheses driven by impact shocks was first proposed by Chyba and Sagan in 1992,[2] based on the scanty indications available at the time. How would the contribution by meteorites to an early earth organic pool compare with the syntheses these meteorites might have induced after their impact?[2]Here, we report the catalytic effect of several types of meteorites,[3a, b] iron, stony-iron,[3b] chondrites,[4] and achondrites (entreis 1–12 in Table 1 [2, 5]) in the syntheses of organic molecules of prebiotic interest using the model reaction of the thermal condensation of formamide(NH2CHO).[6] NH2CHO is a ubiquitous molecule in the universe that has been observed in the comet Hale-Bopp,[7] in the stellar objects W33A,[8] NGC7538, and W3ACHTUNGTRENNUNG (H2O),[9] in the interstellar