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  Coherent Enantiomer‐Selective Population Enrichment Using Tailored Microwave Fields

Pérez, C., Steber, A. L., Domingos, S. R., Krin, A., Schmitz, D., & Schnell, M. (2017). Coherent Enantiomer‐Selective Population Enrichment Using Tailored Microwave Fields. Angewandte Chemie International Edition, 56(41), 12512-12517. doi:10.1002/anie.201704901.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-96FB-B Version Permalink: http://hdl.handle.net/21.11116/0000-0001-B4C7-3
Genre: Journal Article

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P-rez_et_al-2017-Angewandte_Chemie_International_Edition.pdf (Publisher version), 4MB
 
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https://dx.doi.org/10.1002/anie.201704901 (Publisher version)
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 Creators:
Pérez, C.1, 2, Author              
Steber, A. L.1, 2, Author              
Domingos, S. R.1, 2, Author              
Krin, A.1, 2, Author              
Schmitz, D.1, 2, Author              
Schnell, M.1, 2, 3, Author              
Affiliations:
1Structure and Dynamics of Cold and Controlled Molecules, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938292              
2Deutsches Elektronen-Synchrotron DESY, ou_persistent22              
3Christian-Albrechts-Universität zu Kiel Institute of Physical Chemistry, ou_persistent22              

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Free keywords: chirality; enantiomers; gas-phase chemistry; population transfer; rotational spectroscopy
 Abstract: We report the experimental demonstration of coherent enantiomer‐selective enrichment of chiral molecules by employing a novel microwave five‐pulse scheme. Our results show that enantiomers can be selectively transferred to a rotational level of choice by applying sequences of resonant microwave pulses in a phase‐ and polarization‐controlled manner. This is achieved by simultaneously exciting all three kinds of electric dipole‐allowed rotational transitions and monitoring the effect on a fourth rotational transition of choice. Using molecular beams, we apply our method to two chiral terpenes and obtain a 6 % enantiomeric enrichment, which is one order of magnitude larger than that recently reported in a buffer‐gas cell experiment. This approach establishes a robust scheme for controlled manipulation of enantiomers using tailored microwave fields and opens up new avenues for chiral purification and enrichment that can be used in a broad scope of analytical or spectroscopic applications.

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Language(s): eng - English
 Dates: 2017-06-292017-05-162017-08-022017-10-02
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1002/anie.201704901
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Project name : This work has been supported by the excellence cluster “The Hamburg Centre for Ultrafast Imaging—Structure,Dynamics and Control of Matter at the Atomic Scale” of the Deutsche Forschungsgemeinschaft. C.P. and S.R.D.acknowledge grants by the Alexander von Humboldt Stiftung, and A.L.S. acknowledges the Louise Johnson Fellowship.The authors thank Dave Patterson for fruitful scientific discussions.
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Title: Angewandte Chemie International Edition
  Other : Angew. Chem., Int. Ed.
  Other : Angew. Chem. Int. Ed.
  Other : Angewandte Chemie, International Edition
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 56 (41) Sequence Number: - Start / End Page: 12512 - 12517 Identifier: ISSN: 1433-7851
CoNE: /journals/resource/1433-7851