Chemical effects on the main peak in the K absorption spectrum of manganese in some compounds

During the course of the authors detailed study of the K absorption spectrum of manganese in its different compounds, it has been observed that the shape and position of the main peak-the resonance-like absorption, often called the white line - are influenced by chemical combination. In the present paper they report the chemical shifts of the main absorption peak in eight manganese compounds. The molecular orbital theory has been employed to interpret the shifts observed with the change in the oxidation state and in the ligands of the manganese atom. it has been shown probably for the first time that, like the position of the principal discontinuity, the chemical shift of the main peak is also governed by the effective charge on the absorbing atoms.