Oxidation of actinides

Reason for the observation that a large number of oxides of actinide elements are non-stoichiometric but the same is not true for the lanthanide elements ... 

As stated in the opening section of this chapter, the objective is to discuss and compare the solid-state chemistry and physics of the lanthanide and actinide element oxides. The topics of discussion have been limited to binary oxides of these elements. Therefore, a discussion of the many complex (ternary, mixed, etc.) oxide systems for these f elements, and oxides of actinides representing oxidation states above four that do not have lanthanide counterparts, are not present. 

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