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Phys. Rev. Lett. 101, 178301 (2008) [4 pages]

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

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R. A. Rosenberg1, M. Abu Haija1, and P. J. Ryan2
1Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439, USA
2MUCAT, Ames Laboratory, Ames, Iowa 50011, USA

Received 20 May 2008; published 21 October 2008

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.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.101.178301
DOI:
10.1103/PhysRevLett.101.178301
PACS:
82.50.Nd, 82.50.Kx, 96.55.+z