Fourier transform microwave spectroscopy of the SiCl+ ion

Keiichi Tanaka, Kensuke Harada, Carlos Cabezas, Yasuki Endo

Research output: Contribution to journalArticle

Abstract

Fourier transform microwave spectra for the J = 1 ← 0 and 2 ← 1 rotational transitions of the SiCl+ ion were observed for two isotopologues (35Cl and 37Cl) in the ground and the first excited vibrational states of the ground 1Σ+ electronic state. Thanks to the high resolution of the FTMW spectrometer, hyperfine structures due to the quadrupole moment of the chlorine nucleus and the nuclear spin-rotation interaction were fully resolved. The observed FTMW spectra were combined with previously reported MMW and diode laser spectra in an analysis to determine the mass-independent Dunham coefficients Uk,l as well as a mass scaling parameter Δ01Cl=-0.856(30). The equilibrium bond length of SiCl+ determined is re=1.9439729(10) Å and the nuclear quadrupole coupling constant of Si35Cl+ is eQqe=-11.8788(23) MHz.

Original languageEnglish
Pages (from-to)39-45
Number of pages7
JournalJournal of Molecular Spectroscopy
Volume345
DOIs
Publication statusPublished - Mar 1 2018

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Microwave spectroscopy
Chlorine
Bond length
Electronic states
Semiconductor lasers
Spectrometers
Fourier transforms
quadrupoles
Microwaves
Ions
microwaves
microwave spectra
hyperfine structure
vibrational states
nuclear spin
spectroscopy
chlorine
ions
semiconductor lasers
spectrometers

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry

Cite this

Fourier transform microwave spectroscopy of the SiCl+ ion. / Tanaka, Keiichi; Harada, Kensuke; Cabezas, Carlos; Endo, Yasuki.

In: Journal of Molecular Spectroscopy, Vol. 345, 01.03.2018, p. 39-45.

Research output: Contribution to journalArticle

Tanaka, Keiichi ; Harada, Kensuke ; Cabezas, Carlos ; Endo, Yasuki. / Fourier transform microwave spectroscopy of the SiCl+ ion. In: Journal of Molecular Spectroscopy. 2018 ; Vol. 345. pp. 39-45.
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