Chiral-Selective Chemistry Induced by Spin-Polarized Secondary Electrons from a Magnetic Substrate

Details Chiral-Selective Chemistry Induced by Spin-Polarized Secondary Electrons from a Magnetic Substrate Chiral-Selective Chemistry Induced by Spin-Polarized Secondary Electrons from a Magnetic Substrate

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008phrvl.101q8301r&link_type=abstract

Physical Review Letters, vol. 101, Issue 17, id. 178301

Biology

5

Control Of Photochemical Reactions, Processes Caused By X-Rays Or Gamma-Rays, Astrobiology And Astrochemistry Of The Solar System And Interplanetary Space

Scientific paper

We demonstrate for the first time that low-energy spin-polarized secondary electrons, produced by irradiation of a magnetic substrate, can induce chiral-selective chemistry. Our approach was to perform detailed measurements of the reaction rate for x-ray induced, secondary electron photolysis of a model chiral compound, (R)- or (S)-2-butanol, adsorbed on a magnetized Permalloy substrate. The results showed that there is an enhancement of ˜10% in the rate of CO bond cleavage that depends on the chirality of the molecule and the spin polarization of the substrate secondary electrons.

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