University of Illinois Urbana-Champaign

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

Kolesniková, Lucie

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WL06_1.pdf
6318.pdf

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

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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
Genre of Resource
Conference Paper / Presentation
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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Abstracts & Presentations - 2022 International Symposium on Molecular Spectroscopy PRIMARY