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Field-Induced Diastereomers for Chiral Separation

Yachmenev, A; Onvlee, J; Zak, E; Owens, A; Küpper, J; (2019) Field-Induced Diastereomers for Chiral Separation. Physical Review Letters , 123 (24) , Article 243202. 10.1103/physrevlett.123.243202. Green open access

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Abstract

A novel approach for the state-specific enantiomeric enrichment and the spatial separation of enantiomers is presented. Our scheme utilizes techniques from strong-field laser physics—specifically an optical centrifuge in conjunction with a static electric field—to create a chiral field with defined handedness. Molecular enantiomers experience unique rotational excitation dynamics, and this can be exploited to spatially separate the enantiomers using electrostatic deflection. Notably, the rotational-statespecific enantiomeric enhancement and its handedness are fully controllable. To explain these effects, the conceptual framework of field-induced diastereomers of a chiral molecule is introduced and computationally demonstrated through robust quantum-mechanical simulations on the prototypical chiral molecule propylene oxide (C3H6O), for which ensembles with an enantiomeric excess of up to 30% were obtained.

Type: Article
Title: Field-Induced Diastereomers for Chiral Separation
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/physrevlett.123.243202
Publisher version: https://doi.org/10.1103/physrevlett.123.243202
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10088192
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