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The KRb (2)3Σ+ Electronic State

✍ Scribed by C. Amiot

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
151 KB
Volume
203
Category
Article
ISSN
0022-2852

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✦ Synopsis

High-resolution spectra of the (3) 1 ⌸ 3 (2) 3 ⌺ ϩ system of the KRb molecule, obtained after excitation with fixed frequencies Ar ϩ laser lines, were recorded on a Connes-type Fourier transform interferometer. Molecular constants of the first 14 vibrational levels of the (2) 3 ⌺ ϩ state are determined. The RKR potential energy curve is derived. The main spectroscopic constants for this triplet electronic state of the 39 K 85 Rb isotopic species are T e ϭ 13 507.146(2) cm Ϫ1 , e ϭ 48.6385(6) cm Ϫ1 , B e ϭ 0.0254152(5) cm Ϫ1 , ␥ ϭ 0.00164(4) cm Ϫ1 , ⑀ ϭ Ϫ0.469(2) cm Ϫ1 , R e ϭ 4.98345 Å, Ᏸ e ϭ 3447 cm Ϫ1 .

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