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The pure rotational spectrum of ScBr

TitleThe pure rotational spectrum of ScBr
Publication TypeJournal Article
Year of Publication2000
AuthorsLin, W, Evans, CJ, Gerry, MCL
JournalPhysical Chemistry Chemical Physics
Volume2
Pagination43-46
Type of ArticleArticle
ISBN Number1463-9076
KeywordsHYPERFINE, MOLECULAR-BEAM, MONOBROMIDE, RF DOUBLE-RESONANCE, SCANDIUM, SPECTROSCOPY, STATE, SYSTEM, YTTRIUM
Abstract

The pure rotational spectra of (ScBr)-Br-7 9 and (ScBr)-Br-8 1 have been measured in two vibrational states (upsilon = 0 and 1) in the 5-24 GHz spectral region, using a cavity pulsed jet Fourier transform microwave spectrometer. The samples were prepared by ablating Sc metal in the presence of Br-2 contained in the Ar backing gas of the jet. The equilibrium internuclear distance r(e) has been determined along with estimates for the harmonic vibration frequency omega(e) and the dissociation energy, D-e. Nuclear quadrupole coupling constants and spin-rotation constants have been determined for both Sc and Br. The ionic character of the ScBr bond is estimated to be similar to 95%. Magnetic shieldings for both nuclei have been estimated.

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