University of Illinois Urbana-Champaign

Infrared spectra of the n-propyl and i-propyl radicals in solid para-hydrogen

Pullen, Gregory T.

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2507.pdf
920069.pdf
920069.pptx
Gregory_Pullen_ISMS_2017.pdf

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https://hdl.handle.net/2142/96905

Description

Title
Infrared spectra of the n-propyl and i-propyl radicals in solid para-hydrogen
Author(s)
Pullen, Gregory T.
Contributor(s)
  • Lee, Yuan-Pern
  • Douberly, Gary E.
  • Franke, Peter R.
Issue Date
2017-06-23
Keyword(s)
Vibrational structure/frequencies
Date of Ingest
  • 2017-07-27T20:15:13Z
  • 2018-01-29T23:03:20Z
Abstract
We report the infrared spectra of the textit{n}-propyl and textit{i}-propyl radicals measured in solid para-hydrogen (textit{p}-chem{H_2}) matrices at 3.2 K. textit{n}-Propyl and textit{i}-propyl radicals were produced via the 248 nm irradiation of matrices formed by co-depositing textit{p}-chem{H_2} and either 1-Iodopropane (textit{n}-propyl) or 2-Iodopropane (textit{i}-propyl). Secondary photolysis was used to group spectral lines all due to the same species. Lines in the C-H stretching region were compared to previous work using the Helium Nanodroplet Isolation (HENDI) technique,footnote{Peter R. Franke, Daniel P. Tabor, Christopher P. Moradi, Gary E. Douberly, Jay Agarwal, Henry F. Schaefer III, and Edwin L. Sibert III, textit{Journal of Chemical Physics} textbf{145}, 224304 (2016).} and are in excellent agreement. In addition to a few lines previously measured in Ar matrices, we observe many previously unreported bands below 2000 wn, which we attribute to the textit{n}-propyl and textit{i}-propyl radicals. The assignment of features below 2000 wn are made via comparisons to anharmonic VPT2+K frequency computations.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/96905
DOI
https://doi.org/10.15278/isms.2017.FC02
Copyright and License Information
Copyright 2017 Gregory T. Pullen

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Abstracts & Presentations - 2017 International Symposium on Molecular Spectroscopy PRIMARY