Abstract

In order to explain the origin of both absorption bands and lines of the octahedral normal complex ions in which the central metal ions belong to iron group elements, the erystalline field approximation interpreted in somewhat generalized sense is adopted. For this purpose the calculation of the energy matrix elements for d n ( n =1, 2, ..., 9) electron configuration in cubic field is performed by means of Racah's method. Comparison of the results with experiments will be made in the following paper.