High Resolution Laser Spectroscopy Of Rhenium Carbide

Hall, Ryan M.

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https://hdl.handle.net/2142/51052 Copy

Description

Title

High Resolution Laser Spectroscopy Of Rhenium Carbide

Author(s)

Hall, Ryan M.

Contributor(s)

• Tokaryk, Dennis
• Linton, Colan
• Adam, Allan G.

Issue Date

2014-06-17

Keyword(s)

Metal containing

Abstract

The first spectroscopic study of rhenium carbide, ReC, has been performed using both low and high resolution techniques to collect rotationally resolved electronic spectra from 420 to 500nm. Laser-induced fluorescence (LIF), and dispersed fluorescence (DF) techniques were employed. ReC was formed in our laser ablation molecular jet apparatus by ablating a rhenium target rod in the presence of 1\% methane in helium. The low resolution spectrum identified four bands of an electronic system belonging to ReC, three of which have been studied so far. Extensive hyperfine structure composed of six hyperfine components was observed in the high resolution spectrum, as well as a clear distinction between the $^{187}$ReC and $^{185}$ReC isotopologues. The data seems consistent with a $^4\Pi$ - $^4\Sigma^{-}$ transition, as was predicted before experimentation\footnote{Personal communication, F. Grein, University of New Brunswick}.Dispersed fluorescence spectra allowed us to determine the ground state vibrational frequency ($\omega_{e}^{\prime\prime}$=994.4 $\pm$ 0.3 \wn), and to identify a low-lying electronically excited state at $T_{e}^{\prime\prime}$=1118.4 $\pm$ 0.4 \wn with a vibrational frequency of $\omega_{e}^{\prime\prime}$=984 $\pm$ 2 \wn.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/51052

DOI

https://doi.org/10.15278/isms.2014.TK07

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/

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