ISSN:
1089-7690
Source:
AIP Digital Archive
Topics:
Physics
,
Chemistry and Pharmacology
Notes:
New electronic transitions of KRb are identified near 530 nm by resonance enhanced two photon ionization study in a supersonic molecular beam. The rotational structure shows O, P, Q, R, and S branches. From the high resolution rotational analysis and comparison with the spectra of other alkali diatomic molecules we assign the observed bands to the 1 1Δ-X 1Σ+ transitions of KRb, which are allowed by electric quadrupole radiation. We obtain molecular constants for the upper electronic state of 39K85Rb as ωe=64.624 1(35)cm−1, Te=18 991.011 0(14)cm−1, Be′=0.035 703 9(10)cm−1, and Re=4.204 55(6) Å. Another new electronic transition observed in the same wavelength region is assigned to the 3 3Σ+-X 1Σ+ transition from the comparison with ab initio calculations. © 2001 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1407272
Permalink