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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
Subject(s):Mini-symposium: 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.
Issue Date:6/22/2017
Publisher:International Symposium on Molecular Spectroscopy
Citation Info:APS
Genre:CONFERENCE PAPER/PRESENTATION
Type:Text
Language:English
URI:http://hdl.handle.net/2142/97042
DOI:10.15278/isms.2017.RF10
Date Available in IDEALS:2017-07-27


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