Naming the Central Metal Atom

In cationic or neutral complexes the central metal keeps its ordinary element name (e.g. chromium, iron, cobalt); in anionic complexes a suffix '-ate' is added to the metal name instead (chromate, ferrate, cobaltate), and several metals additionally take a shortened Latin-derived stem before the '-ate' suffix. In both cases, the oxidation state of the metal is written immediately after the metal name …