The preparation of some manganese compounds

Abstract

A characteristic property of the transition elements is the ability of an element to exist in a number of different oxidation states. Manganese has oxidation states from — III to +VII. The lower oxidation states are only formed with π-bonding molecules (see p. 73). For the change from one oxidation state to another, the oxidation potentials when available, give some information as to the type of oxidizing or reducing agent which will bring about the required reaction. By suitable adjustment of reaction conditions a transition element in one oxidation state may be converted to a different oxidation state.