The Deep Configurations of Cobalt

The energy matrix of electrostatic and magnetic spinorbit interaction is set up for d⁷s², d⁸s and d⁹, taking into account the mutual interactions of these configurations. The secular equations are fitted to the deep configurations of Co I, separately, by selecting suitable values for the interaction parameters. The uncertainty existing concerning the assignments of a²D, a²G and b²D is removed. The g-factors for the Zeeman effect in intermediate coupling are calculated for comparison with experimental values presented in the following paper. The mutual interactions of 3d⁸4s with 3d⁷4s² and 3d⁹ are found to be relatively insignificant. The secular equations are fitted to 3d⁷4s² and 3d⁹ together, tentatively, in order to observe the effect of mutual interaction upon the values of certain terms which have not yet been discovered, and upon the g-factors. The interaction parameters are compared with those of the deep configurations of Ni I.