Observation of ground state rotational transitions in silicon tetrafluoride

Jörissen, Ludwig; Kreiner, W. A.; Chen, Yit‐Tsong; Oka, Takeshi

doi:10.1016/0022-2852(86)90084-6

Cited by 15 publications

(2 citation statements)

References 13 publications

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“…The ν 3 dipole moment derivative has been estimated using a few isolated lines [13]. The ground state has also been investigated with a few rotational lines recorded in the microwave region [20] and also using sideband lasers [21,22]. The Stark effect was investigated in the ground state [23] and in the ν 3 band [24].…”

Section: Introductionmentioning

confidence: 99%

High-resolution spectroscopy and analysis of the ν3, ν4 and 2ν4 bands of SiF4 in natural isotopic abundance

Boudon

Manceron

Richard

2020

Journal of Quantitative Spectroscopy and Radiative Transfer

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Silicon tetrafluoride (SiF 4 ) is a trace component of volcanic gases. However, a better knowledge of spectroscopic parameters is needed for this molecule in order to derive accurate concentrations. This motivated FTIR measurements with high-spectral resolution (0.001 cm −1 ) and an extensive study of its infrared absorption bands, including the fundamentals and overtone and combinations. We present here a detailed analysis and modeling of the strongly absorbing ν 3 and ν 4 fundamental bands, for the three isotopologues in natural abundance: 28 SiF 4 (92.23 %), 29 SiF 4 (4.67 %) and 30 SiF 4 (3.10 %). It includes a global fit with consistent parameter sets for the ground and excited states. In particular, all existing rotational line data have been included. The 2ν 4 band of 28 SiF 4 could also be analyzed in detail. A first fit of the dipole moment derivative for the ν 3 band for 28 SiF 4 has been performed, along with two independent estimates of the integrated band intensity; the results are consistent with literature values, around 690 km/mol. The isotopic dependence of band centers and Coriolis parameters has also been studied. TFSiCaSDa, a new database of cross sections and calculated lines for the ν 3 band of SiF 4 , has been set up.

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Section: Introductionmentioning

confidence: 99%

High-resolution spectroscopy and analysis of the ν3, ν4 and 2ν4 bands of SiF4 in natural isotopic abundance

Boudon

Manceron

Richard

2020

Journal of Quantitative Spectroscopy and Radiative Transfer

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“…In subsequent studies, [13,14,15] authors explored the ν 3 fundamental and 3ν 3 band which have been analyzed using both Doppler-limited diode laser spectroscopy and sub-Doppler saturation spectroscopy, both infrared and microwave transitions have been assigned. The next few years of work devoted to the study of this molecule covered some theoretical calculations, Hamiltonian model improvement, double resonance measurement and improvement of ground state using the data on ν 3 band [16,17]. Also, the second-order Stark effect, splitting the ground state levels of SiF 4 have been observed [18,19,20,21,22].…”

Section: Introductionmentioning

confidence: 99%