Fine and hyperfine analysis of ruthenium monoboride isotopologues

Dore, Jacob M.

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https://hdl.handle.net/2142/104242 Copy

Description

Title

Fine and hyperfine analysis of ruthenium monoboride isotopologues

Author(s)

Dore, Jacob M.

Contributor(s)

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

Issue Date

2019-06-18

Keyword(s)

Small molecules

Abstract

Using diborane, \chem{B_2H_6}, as a reactant gas and ruthenium as the target metal in the UNB laser ablation molecular jet apparatus, ruthenium monoboride molecules have been detected using laser-induced fluorescence spectroscopy. The [18.4]2.5-X$^{2}$$\Delta$$_{5/2}$ electronic transition of RuB has been observed previously at pulsed-dye laser resolution\footnote{Wang, N., Ng, Y. W. and Cheung, A. S. Chem. Phys. Lett. 547, 21-23 (2012).}. Three vibronic bands were rotationally analyzed and designated as the (1-0), (0-0) and (0-1) bands, but only the Ru$^{11}$B and Ru$^{10}$B isotopologues were resolved. Ruthenium has 7 naturally occurring isotopes ranging from 1.87\% to 31.55\% abundance, giving a total combination of 14 isotopologues for RuB. Using our cw-ring dye laser, the three vibronic bands were recorded at high resolution and 12 of the isotopologues have been rotationally analyzed. Both of the odd isotopes of Ru have a nuclear spin I=5/2 and their respective isotopologues had resolved hyperfine structure which was analyzed to extract the hyperfine parameters. It was determined that the hyperfine interaction arises from the nuclear spin of the $^{101}$Ru and $^{99}$Ru atoms and not from the boron nucleus.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104242

DOI

https://doi.org/10.15278/isms.2019.TI03

Copyright and License Information

Copyright 2019 Jacob M. Dore

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