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High-Resolution Laser Excitation Spectra of theA2Π ←X2Σ+System of SrBr: The 0–0 and 1–0 Bands of Sr79Br and Sr81Br

✍ Scribed by John A. Coxon; Cameron S. Dickinson

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
375 KB
Volume
190
Category
Article
ISSN
0022-2852

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✦ Synopsis

Two bands (0 -0 and 1-0) of the A 2 ⌸-X 2 ⌺ ϩ system of 88 Sr 79 Br and 88 Sr 81 Br have been analyzed rotationally for the first time. Well-resolved spectra were recorded by laser excitation spectroscopy with selective detection of fluorescence. For each band of the individual isotopomers, about 130 line positions with a measurement accuracy of Ϸ0.003 cm Ϫ1 were employed in a least-squares fit of the excited state molecular parameters. The principal results for the A 2 ⌸ state are A e ϭ 302.432(1) cm Ϫ1 and R e ϭ 2.7147(1) Å.

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