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  • 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.

Physical review letters (2008-11-13)
R A Rosenberg, M Abu Haija, P J Ryan
ABSTRACT

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 approximately 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.

MATERIALS
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Supelco
2-Butanol, analytical standard
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50 mL
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Aluminum-tri-sec-butoxide, 97%
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50 mL
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2-Butanol, anhydrous, 99.5%
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2-Butanol, ReagentPlus®, ≥99%
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50 mL
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Sigma-Aldrich
(S)-(+)-2-Butanol, 99%
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50 mL
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