The microwave spectrum of lactaldehyde, the simplest chiral sugar

Alonso, Elena R.

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https://hdl.handle.net/2142/97042 Copy

Description

Title

The microwave spectrum of lactaldehyde, the simplest chiral sugar

Author(s)

Alonso, Elena R.

Contributor(s)

• Alonso, José L.
• Guillemin, J.-C.
• Mata, Santiago
• Cabezas, Carlos
• Kolesniková, Lucie

Issue Date

2017-06-22

Keyword(s)

Atacama Large Millimeter/submillimeter Array (ALMA)'s molecular view

Abstract

Among the sugar compounds whose conformations have been determined by different spectroscopic techniques the structure of the lactaldehyde (chem{CH_3CH(OH)CHO}), the simplest chiral sugar, is conspicuously absent. It is of great interest in the field of astrophysics, where the ongoing search in the interstellar medium (ISM) has been able to detect, based on the rotational spectra identification, the simplest C$_{2}$ sugar glycoaldehyde footnote{Hollis JM; Lovas FJ; Jewell. Astrophys J. (2000), 540(2):L107–L110}$^{,}$ footnote{Hollis JM; Jewell PR; Lovas FJ; Remijan A. Astrophys J. (2004), 613(1):L45–L48.} Lactaldehyde is a solid with high melting point and low vapor pressure, preventing easy measurements of its gas-phase spectra. Herein, crystalline DL-lactaldehyde samples have been vaporized by laser ablation (LA) and the monomer and the non-centrosymmetric hemiacetal dimer have been revealed in a supersonic expansion by broadband Fourier transform microwave (CP-FTMW) spectroscopy. This rotational study enables the search of the lactaldehyde in the ISM.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/97042

DOI

https://doi.org/10.15278/isms.2017.RF10

Copyright and License Information

Copyright 2017 Elena R. Alonso

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