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  Sensing Chirality with Rotational Spectroscopy

Domingos, S. R., Pérez, C., & Schnell, M. (2018). Sensing Chirality with Rotational Spectroscopy. Annual Review of Physical Chemistry, 69, 499-519. doi:10.1146/annurev-physchem-052516-050629.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-AA37-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-AA38-1
Genre: Journal Article

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annurev-physchem-052516-050629.pdf (Publisher version), 2MB
 
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 Creators:
Domingos, S. R.1, 2, 3, Author              
Pérez, C.1, 2, 3, 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, ou_persistent22              
3Christian-Albrechts-Universität zu Kiel, Institut für Physikalische Chemie, ou_persistent22              

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Free keywords: chirality, microwave spectroscopy, rotational coherence, enantiomers, diastereomers, cooled buffer gas, supersonic expansion, structure determination, high-resolution spectroscopy, population transfer
 Abstract: Chiroptical spectroscopy techniques for the differentiation of enantiomers in the condensed phase are based on an established paradigm that relies on symmetry breaking using circularly polarized light. We review a novel approach for the study of chiral molecules in the gas phase using broadband rotational spectroscopy, namely microwave three-wave mixing, which is a coherent, nonlinear, and resonant process. This technique can be used to generate a coherent molecular rotational signal that can be detected in a manner similar to that in conventional Fourier transform microwave spectroscopy. The structure (and thermal distribution of conformations), handedness, and enantiomeric excess of gas-phase samples can be determined unambiguously by employing tailored microwave fields. We discuss the theoretical and experimental aspects of the method, the significance of the first demonstrations of the technique for enantiomer differentiation, and the method's rapid advance into a robust choice to study molecular chirality in the gas phase. Very recently, the microwave three-wave mixing approach was extended to enantiomer-selective population transfer, an important step toward spatial enantiomer separation on the fly.

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Language(s): eng - English
 Dates: 2018-02-282018
 Publication Status: Published in print
 Pages: 21
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
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Project name : We thank Alvin Shubert, David Schmitz, Dave Patterson, John Doyle, Anna Krin, and Amanda Steber for their contributions to the work in this review and for insightful discussions. 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 Forschungsge- meinschaft (DFG) and via DFG grant SCHN1280/4-1. S.R.D. and C.P. acknowledge a postdoc- toral research fellowship from the Alexander von Humboldt Foundation.
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Title: Annual Review of Physical Chemistry
  Other : Annu. Rev. Phys. Chem.
Source Genre: Journal
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Publ. Info: Palo Alto, Calif. [etc.] : Annual Reviews.
Pages: 21 Volume / Issue: 69 Sequence Number: - Start / End Page: 499 - 519 Identifier: ISSN: 0066-426X
CoNE: /journals/resource/954925458046