LIF spectroscopy of linear SiOSi

Fukushima, Masaru

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https://hdl.handle.net/2142/104442 Copy

Description

Title

LIF spectroscopy of linear SiOSi

Author(s)

Fukushima, Masaru

Contributor(s)

Ishiwata, Takashi

Issue Date

2019-06-19

Keyword(s)

• Electronic structure
• Potential energy surfaces

Abstract

We have assigned spectral species of a LIF spectrum with $^1\Pi$ -- $^1\Sigma$ rotational structure to SiOSi with the aid of $ab$ $initio$ quantum chemical calculations\footnote{M.~Fukushima and T.~Ishiwata, 73rd ISMS, paper MJ09 (2018).}. Due to the spectrum's red-shaded structure, the $R$-branch forms a band head, and an analysis adopting the $P$- and $Q$-branches had not been satisfactory. As the $ab$ $initio$ calculations suggest the ground electronic state is 1$^1\Sigma_g^+$, we attempted a more precise analysis via combination differences and noted heavy irregularities exclusive to the upper levels of the $Q$-branch. Considering parities of the rotational levels of the upper $\Pi$ electronic state, we are investigating this irregularity with the aid of computation.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/104442

DOI

https://doi.org/10.15278/isms.2019.WD09

Copyright and License Information

Copyright 2019 Masaru Fukushima

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