University of Illinois Urbana-Champaign

Iodine: many electrons and much to discuss...THE Nuclear quadrupole coupling, nuclear spin-rotation, conformational analysis, and structural determination of 2-Iodobutane

Arsenault, Eric A.

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https://hdl.handle.net/2142/91070

Description

Title
Iodine: many electrons and much to discuss...THE Nuclear quadrupole coupling, nuclear spin-rotation, conformational analysis, and structural determination of 2-Iodobutane
Author(s)
Arsenault, Eric A.
Contributor(s)
  • Novick, Stewart E.
  • Blake, Thomas A.
  • Cooke, S. A.
  • Obenchain, Daniel A.
  • Choi, Yoon Jeong
Issue Date
2016-06-22
Keyword(s)
(Hyper)fine structure, tunneling
Abstract
  • The rotational spectrum of 2-iodobutane (sec-butyl-iodide) has been collected from 5.5-16.5 GHz using jet-pulsed Fourier transform microwave spectroscopy on both broadband\footnote{Brown, G. G.
  • Dian, B. C.
  • Douglass, K. O.
  • Geyer, S. M.
  • Shipman, S. T.
  • Pate, B. H. \textit{Review of Scientific Instruments} \textbf{2008}, \textit{79}, 053103.} and Balle-Flygare cavity\footnote{Balle, T.
  • Flygare, W. \textit{Review of Scientific Instruments} \textbf{1981}, \textit{52}, 33-45.} instruments. Transitions belonging to three unique conformers were observed, namley the gauche-, anti-, and gauche$'$- species. All four $^{13}$\chem{C} isotopologues of the gauche-2-iodobutane were observed. The complete nuclear quadrupole coupling tensor of iodine has been determined for all conformers and $^{13}$\chem{C} isotopologues. A comparison between these nuclear quadrupole coupling tensors and those of similar iodine-containing molecules will be presented. Changes in the quadrupole coupling of iodine upon isotopic substitution will also be discussed. Additionally, isotopic substitution in conjunction with \textit{ab initio} calculations allowed for both an $r_s$ and $r_0$ structural analysis of gauche-2-iodobutane.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Language
En
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http://hdl.handle.net/2142/91070
Copyright and License Information
Copyright 2016 by the authors

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Abstracts & Presentations - 2016 International Symposium on Molecular Spectroscopy PRIMARY