Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 2, Issue 1, Pages 43-46Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/a907769c
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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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