Low-Lying Electronic States of the ScF Molecule: Energies of the a3Δ, b3Π, and A1Δ States

Shenyavskaya, E.A.; Ross, A.J.; Topouzkhanian, A.; Wannous, G.

doi:10.1006/jmsp.1993.1287

Cited by 32 publications

(27 citation statements)

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“…Our experimental setup was already described in another paper (5). A mixture of strontium iodide and metallic yttrium was heated in a special furnace to produce YI molecules at high temperature (roughly 2000 K).…”

Section: Methodsmentioning

confidence: 99%

Laser-Excited Fluorescence Spectra of Yttrium Monoiodide

Wannous

Effantin

Bernard

et al. 1999

Journal of Molecular Spectroscopy

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The rotational structure of the laser-excited fluorescence of yttrium monoiodide, recorded on a Fourier transform spectrometer, was analyzed, enabling the characterization of two excited states at T(e) approximately 20 690 and approximately 24 100 cm(-1). Observation of the ground state X(1)Sigma(+) is extended up to v = 15. A scheme for the electronic structure is proposed, involving the X(1)Sigma(+), B(1)Pi, D(1)Pi, Omega1, and possibly A((1)Delta) states. Copyright 1999 Academic Press.

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Section: Methodsmentioning

confidence: 99%

Laser-Excited Fluorescence Spectra of Yttrium Monoiodide

Wannous

Effantin

Bernard

et al. 1999

Journal of Molecular Spectroscopy

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“…With this apparatus, a resolution of about 0.06 cm −1 is currently achieved, corresponding to an uncertainty of about 0.007 cm −1 in the determination of the positions of the sharpest lines. More details on the experimental procedure have been given by Shenyavskaya et al (1993).…”

Section: Methodsmentioning

confidence: 99%

Laser-excited fluorescence spectra of lanthanum monoxide

Bernard

Taher

Topouzkhanian

et al. 1999

Astron. Astrophys. Suppl. Ser.

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Abstract. Fluorescence spectra of lanthanum monoxide excited by selected Ar + and Kr + laser lines have been analysed by Fourier transform spectrometry. Rotational levels in the B 2 Σ + (v = 2, 3, 4) electronic state have been populated either directly or after collisional relaxation, inducing many fluorescence transitions to the ground state X 2 Σ + (v = 1 to 5). Under our experimental conditions, bands of the ∆v = 0 sequence of the B→X system also appear, fairly developed.A global treatment of the wavenumbers of some 830 lines in 9 bands of the system, involving the levels v = 0 to 4 and v = 0 to 5, is carried out. The consistent set of accurate effective spectroscopic constants for both electronic states, directly obtained at equilibrium, is expected to be useful for high resolution syntheses of S-type stellar spectra.

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“…High-quality ab initio calculations are now possible for transition metal systems and these predictions should be compared with experiments. For these reasons, there has been a renewed interest in the spectroscopy of transition metal halides (15)(16)(17)(18)(19)(20)(21)(22)(23)(24). In the IV B transition metal family, the electronic spectra of TiF (25), TiCl (26 -28), and ZrCl (29,30) have been studied very recently at high resolution.…”

Section: Introductionmentioning

confidence: 99%