University of Illinois Urbana-Champaign

Millimeter-wave spectroscopy of MgI (~X2Σ+)

Burton, Mark

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2270.pdf
833090.pptx

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https://hdl.handle.net/2142/96901

Description

Title
Millimeter-wave spectroscopy of MgI (~X2Σ+)
Author(s)
Burton, Mark
Contributor(s)
  • Ziurys, Lucy M.
  • Kilchenstein, K.M.
Issue Date
2017-06-19
Keyword(s)
Small molecules
Date of Ingest
  • 2017-07-27T20:15:12Z
  • 2018-01-29T23:03:22Z
Abstract
The pure rotational spectrum of MgI in its ground electronic state (~{X}$^{2}$$Sigma$$^{+}$) has been measured using millimeter/submillimeter wave direct-absorption techniques. Rotational transitions arising from the v = 0, 1, and 2 vibrational states of $^{24}$MgI, as well as the v = 0 state for the isotopologues ($^{25}$MgI and $^{26}$MgI), have been measured in their natural abundance in the region of 200 – 300 GHz. Rotational, centrifugal distortion, and spin-rotation constants were determined for each isotopologue and the excited vibrational states of $^{24}$MgI. Equilibrium parameters B$_{e}$, $alpha$$_{e}$, D$_{e}$, and $gamma$$_{e}$ were ascertained and used to calculate an equilibrium bond length (r$_{e}$) for MgI. The spin-rotation coupling constants of several magnesium monohalides were examined and the contribution to the spin-rotation parameter appears to be dominated by second order spin-orbit coupling of the nearby excited A$^{2}$$Pi$ electronic state.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/96901
DOI
https://doi.org/10.15278/isms.2017.MH06
Copyright and License Information
Copyright 2017 Mark Burton

Owning Collections

Abstracts & Presentations - 2017 International Symposium on Molecular Spectroscopy PRIMARY