University of Illinois Urbana-Champaign

Structural Isomerization Of The Gas Phase 2-norbornyl Cation Revealed With Infrared Spectroscopy And Computational Chemistry

Mauney, Daniel

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TG10_Abstract.pdf
TG10_Abstract.txt
TG10_Presentation.pptx

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https://hdl.handle.net/2142/50854

Description

Title
Structural Isomerization Of The Gas Phase 2-norbornyl Cation Revealed With Infrared Spectroscopy And Computational Chemistry
Author(s)
Mauney, Daniel
Contributor(s)
  • Duncan, Michael A.
  • Mosley, Jonathan
Issue Date
2014-06-17
Keyword(s)
Mini-symposium: Beyond the Mass-to-Charge Ratio: Spectroscopic Probes of the Structures of Ions
Date of Ingest
  • 2014-09-17T16:55:11Z
  • 2015-04-14T18:41:37Z
Abstract
"\begin{wrapfigure}{l}{0pt} \includegraphics[scale=0.3]{TOC_Graphic.eps} \end{wrapfigure} The non-classical structure of the 2-norborny cation (\chem{C_7H_{11}}$^{+}$) which was at the center of ""the most heated chemical controversy of our time""\footnote{Schleyer,P.v.R. et. al.; Stable Carbocation Chemistry, John Wiley \& Sons,Inc.; New York, 1997, Cahpter 2} has been observed in the condensed phase and recently using X-ray crystallography. However, no gas phase vibrational spectrum has been collected. The \chem{C_7H_{11}}$^{+}$ cation is produced via \chem{H_3}$^{+}$ protonation of norbornene by pulsed discharge in a supersonic expansion of \chem{H_2}/Ar. Ions are mass-selected and probed using infrared photodissociation spectroscopy. Due to high exothermicity, protonation via \chem{H_3}$^{+}$ leads to a structural isomerization to the global minimum structure 1,3-dimethylcyclopentenyl (DMCP$^{+}$). Experiments are currently being conducted to find softer protonation techniques that could lead to the authentic 2-norbornyl cation."
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
English
Permalink
http://hdl.handle.net/2142/50854
DOI
https://doi.org/10.15278/isms.2014.TG10
Copyright and License Information
Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

Owning Collections

Abstracts & Presentations - 2014 International Symposium on Molecular Spectroscopy PRIMARY