The Jet-cooled Rotational Spectrum Of N,n'-bis(hydroxymethyl)urea And Its Photo-fragmented Species

Kolesniková, Lucie

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https://hdl.handle.net/2142/116780 Copy

Description

Title

The Jet-cooled Rotational Spectrum Of N,n'-bis(hydroxymethyl)urea And Its Photo-fragmented Species

Author(s)

Kolesniková, Lucie

Contributor(s)

• Alonso, José L.
• Alonso, Elena R.
• León, Iker
• Mata, Santiago

Issue Date

2022-06-22

Keyword(s)

Conformers and isomers

Abstract

A novel approach based on laser ablation of solid organic precursors has been recently proposed for the laboratory \textit{in situ} generations of new chemical species.\footnote{L. Kolesnikov\'{a}, I. Le\'{o}n, E. R. Alonso, S. Mata, and J. L. Alonso, \textit{Angew. Chem. Int. Ed.} 2021, 60, 24461.} The chemical compounds generated in the laser ablation process are cooled in a supersonic expansion and probed by eyes of high-resolution microwave spectroscopy. This "micro-laboratory" enhances the scope of \textit{in situ} experiments using precursors not typically accessible to traditional techniques such as electric discharge and pyrolysis. In this contribution, N,N'-Bis(hydroxymethyl)urea is chosen as a precursor. It contains a C=O functional group and two pairs of --NH and --OH groups, very appealing from the astrochemical point of view. Guided by the theoretical predictions, we assigned the precursor's rotational spectrum (four conformers), and then we focused on tuning up our experiment to achieve the experimental conditions that maximize the photo-fragmentation. A detailed analysis of the spectrum revealed the generation of hydroxymethylurea and the simultaneous formation of other species in the jet, showing that the laser ablation of solid organic precursors constitutes an innovative tool in generating new chemical species. \vspace{0.5cm} \textbf{Acknowledgments:} The authors thank the financial fundings from the Czech Science Foundation (GACR, grant 19-25116Y), Ministerio de Ciencia e Innovaci\'{o}n (grant PID2019-111396GB-I00), Junta de Castilla y Le\'{o}n (grants VA244P20), and European Research Council under the European Union's Seventh Framework Programme ERC-2013-SyG, Grant Agreement n. 610256 NANOCOSMOS.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Handle URL

https://hdl.handle.net/2142/116780

DOI

https://doi.org/10.15278/isms.2022.WL06

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Copyright 2022 held by the authors

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