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Title:Manipulation Of Cold Chiral Molecules Using Electronic And Rotational Spectroscopy
Author(s):Hernandez-Castillo, A. O.
Contributor(s):Eibenberger-Arias, Sandra; Meijer, Gerard; Lee, Ju Hyeon; Bischoff, Johannes
Subject(s):Chirality and stereochemistry
Abstract:The two non-superimposable mirror images of a chiral molecule are referred to as enantiomers. Their structures cannot be transformed into each other by pure translation or rotation. Even though most physical properties of enantiomers are identical – which makes them intrinsically difficult to separate – their handedness often determines their functionality. Chiral analysis, particularly for complex samples, is still challenging, thus there is a need for fast and reliable methods that can differentiate and/or separate enantiomers. Recently, the enantiomer-specific state transfer method$^{1}$ was developed. This method provides the means to populate or depopulate a rotational state of a chosen enantiomer. We have designed, built, and characterized a compact spectrometer capable of performing chirped-pulse Fourier transform microwave spectroscopy, including chiral analysis, and electronic spectroscopy. By combining optical methods with microwave spectroscopy, we seek to maximize the state-specific enantiomeric enrichment. Our recent studies mainly focus on the chiral alcohol 1-indanol. We have acquired and understood its rotationally resolved electronic spectra,$^{2}$ as well as performed microwave-UV double resonance measurements. The gained structural insight serves as a foundation for future, more sensitive enantiomer-specific measurements. I will discuss recent experimental results as well as details of our new experimental setup. $^{1}$Eibenberger, S. et al., Phys Rev Lett 118, 123002 (2017). $^{2}$Hernandez-Castillo, A. O. et al., Phys Chem Chem Phys, (2021).
Issue Date:2021-06-25
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Date Available in IDEALS:2021-09-24

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