CUMULATIVE INDEX oxidation

Considerable attention has been paid to the electronic structures and valences of the rare-earth systems including the oxides. A full discussion of these aspects is outside our scope since they have been thoroughly considered in other places in this series (see Handbook on the Physics and Chemistry of Rare Earths Cumulative index, 1993). 

Entries where the oxidation state of a metal has been specified occur after all the entries for the unspecified oxidation state, and the same or similar entries may occur under both types of heading. Thus cyanide appears under Chromium complexes, Chromium(O) complexes, Chromium(I) complexes, etc. More specific entries, such as Chromium, hexacyano-, may also occur. Similar ligands may also occur in different entries. Thus a carboxylic acid-metal complex may occur under Carboxylic acid complexes, under entries for specific carboxylic acids, and under the specific metal. Coordination complexes may also be listed in the Cumulative Formula Index. 

---