Enantioselective magnetochiral photochemistry

摘要: Many chemical and physical systems can occur in two forms distinguished solely by being mirror images of each other. This phenomenon, known as chirality, is important biochemistry, where reactions involving chiral molecules often require the participation one specific enantiomer (mirror image) possible ones. In fact, terrestrial life utilizes only L enantiomers amino acids, a pattern that ‘homochirality life’ which has stimulated long-standing efforts to understand its origin1. Reactions proceed enantioselectively if reactants or catalysts are involved, some external influence present2. But because themselves an enantioselective production process, homochirality have focused on influences. One such circularly polarized light, chirality photochemical reaction products2,13,14. Because natural optical activity, occurs exclusively media lacking symmetry, magnetic all induced longitudinal fields, both cause polarization rotation potential for magnetically enantioselectivity been investigated, but no convincing demonstrations effect found2,3,4. Here we show experimentally magnetochiral anisotropy—an linking magnetism5,6,7—can give rise enantiomeric excess driven unpolarized light parallel field, suggests this may played role origin life.