The jet-cooled rotational spectrum of glycinamide, an aminoacid precursor

Alonso, Elena R.

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https://hdl.handle.net/2142/97010 Copy

Description

Title

The jet-cooled rotational spectrum of glycinamide, an aminoacid precursor

Author(s)

Alonso, Elena R.

Contributor(s)

• Alonso, José L.
• Guillemin, J.-C.
• Kisiel, Zbigniew
• Kolesniková, Lucie

Issue Date

2017-06-22

Keyword(s)

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

Abstract

The glycinamide chem{H_2NCH_2CONH_2}, considered as one of the possible precursors of glycine, has been generated in the gas phase via laser ablation of glycinamide hydrochloride. The vaporized products were seeded in neon, expanded adiabatically into the vacuum chamber of the spectrometer and probed by broadband chirped pulsed Fourier transform microwave spectroscopy. The most stable conformer is stabilized by an intramolecular hydrogen bonding interaction between the lone pair on the nitrogen in the amine group and the H-N bond in the amide group was observed in accordance with the previous millimeter wave study footnote{Z.Kisiel, E.Białkowska-Jaworska,L.Pszcz'{o}łkowski,J.C.Guillemin, 21st HRMS, Pozna'{n}, 2010.}. Glycinamide possesses two $^{14}$N nuclei with a nuclear quadrupole moment I=1, which give rise to a complex hyperfine structure. We took advantage of the higher resolution of our narrowband LA-MB-FTMW spectrometer footnote{C.Bermudez, S. Mata, C.Cabezas, and J.L.Alonso, Angew. Chem. 2014, 126, 11195–11198.} to fully resolve the nuclear quadrupole hyperfine structure. More than 90 nuclear quadrupole hyperfine components belonging to 5 different rotational transitions were analyzed. This provides a definitive evidence to establish the most stable observed conformer.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/97010

DOI

https://doi.org/10.15278/isms.2017.RF09

Copyright and License Information

Copyright 2017 Elena R. Alonso

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