University of Illinois Urbana-Champaign

O(1D) insertion reactions for the formation and spectral analysis of important interstellar molecules

Bunn, Hayley

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1345055.pptx
3665.pdf

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https://hdl.handle.net/2142/104530

Description

Title
O(1D) insertion reactions for the formation and spectral analysis of important interstellar molecules
Author(s)
Bunn, Hayley
Contributor(s)
  • Widicus Weaver, Susanna L.
  • Zinga, Samuel
  • Schultz, Chase P.
  • Kroll, Jay A.
Issue Date
2019-06-18
Keyword(s)
Astrochemistry and astrobiology in the age of Atacama Large Millimeter/submillimeter Array (ALMA)
Date of Ingest
  • 2019-07-15T22:17:07Z
  • 2020-01-25T19:31:31Z
Abstract
Insertion of O($^{1}$D) into stable precursors has proved an efficient way of producing molecules that are reactive or otherwise unstable under terrestrial conditions. O($^{1}$D) reaction with hydrocarbons occurs preferentially via a barrierless insertion into C-H bonds. Previously in our lab, O($^{1}$D) has been produced via photodissociation of ozone at 248 nm. We have reported successful production of methanol and vinyl alcohol from insertion into methane and ethylene respectively\footnote{B. M.Hays, N. Wehres, B. Alligood DePrince, A. A.M. Roy, J. C. Laas, S. L. Widicus Weaver, Chem.Phys. Lett., 630, 18 (2015)}, where the excess rotational and vibrational energy was quenched using a supersonic expansion, thereby stabilizing the direct insertion product. Using this technique described by Hays et. al., we aim to produce the important glycine precursor, aminomethanol, via insertion into methylamine. Preliminary results have been obtained using O$_{3}$ as the precursor for O($^{1}$D) production, but the side reactions between O$_{3}$ and methylamine produce such a wide variety of products that spectral assignment for aminomethanol is hampered. We propose to photodissociate N$_{2}$O using 193 nm light as a source of O($^{1}$D) production in order to eliminate the multitude of side reactions observed with ozone. Here we will present the efforts made towards producing aminomethanol and collecting its rotational spectrum in the millimeter/sub-millimeter region.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/104530
DOI
https://doi.org/10.15278/isms.2019.TA05
Copyright and License Information
Copyright 2019 Hayley Bunn

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Abstracts & Presentations - 2019 International Symposium on Molecular Spectroscopy PRIMARY