Metallate or metalate is the name given to any complex anion containing a metal ligated to several atoms or small groups.

Look up metallate in Wiktionary, the free dictionary.

Typically, the metal will be one of the transition elements and the ligand will be oxygen or another chalcogenide or a cyanide group (though others are known). The chalcogenide metallates are known as oxometallates, thiometallates, selenometallates and tellurometallates; the cyanide metallates are known as cyanometallates.

Oxometallates include permanganate (MnO−
4), chromate (CrO2−
4) and vanadate (VO−
3 or VO3−
4).

Thiometallates include tetrathiovanadate (VS3−
4), tetrathiomolybdate (MoS2−
4), tetrathiotungstate (WS2−
4) and similar ions.[1]

Cyanometallates include ferricyanide and ferrocyanide.

Metallate is also used as a verb by bioinorganic chemistry to describe the act of adding metal atoms or ions to a site (synthetic ligand or protein).

References

  1. ↑ Diemann, E.; Müller, A. (1973). "Schwefel- und Selenverbindungen von Übergangsmetallen mit d0-Konfiguration" [Sulfur and selenium compounds of transition metals with d0 configurations]. Coordination Chemistry Reviews. 10 (1–2): 79–122. doi:10.1016/S0010-8545(00)80232-5.
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