Manipulation Of Cold Chiral Molecules Using Electronic And Rotational Spectroscopy

Hernandez-Castillo, A. O.

Permalink

https://hdl.handle.net/2142/111301 Copy

Description

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

Issue Date

2021-06-25

Keyword(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).

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Permalink

http://hdl.handle.net/2142/111301

DOI

10.15278/isms.2021.FM08

Owning Collections