THE LOWEST 5G-6H SUPERMULTIPLET OF FE-II

The 3d(6)(D-5)6h subconfiguration of Fe II is established by means of 74 newly identified 5g-6h transitions. These lines are observed in a F ourier transform spectrum of iron emitted from a hollow-cathode discha rge in the region 5350-5410 cm(-1). The application of the ''quadrupol ic'' approximation shows that the JK coupling is well represented in t he 3d(6)6h configuration. The identification of the lines in the spect ra was facilitated by the comparison of the observed intensities with oscillator strengths calculated in the framework of the relativistic H artree-Fock (HFR) approximation and also by consideration of the full width at half maximum (FWHM) of the profiles.