摘要: Abstract High-resolution spectra of the (3)1Π → (2)3Σ+ system KRb molecule, obtained after excitation with fixed frequencies Ar+ laser lines, were recorded on a Connes-type Fourier transform interferometer. Molecular constants first 14 vibrational levels state are determined. The RKR potential energy curve is derived. main spectroscopic for this triplet electronic 39K 85Rb isotopic species Te = 13 507.146(2) cm−1, ωe 48.6385(6) Be 0.0254152(5) γ 0.00164(4) ϵ −0.469(2) Re 4.98345 A, D e 3447 cm−1.
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