Metatungstate
In chemistry, metatungstate refers to the anion with the formula [W12O40]8- and salts derived from this anion. The term also refers to protonated derivatives of this anion, including [H2W12O40]6-. The unprotonated anion [W12O40]12- has Td symmetry.[1]
One of four equivalent subunit of the M12O40 cage in metatungstate.
M12O40 cage in metatungstate.
See also
- Paratungstate [W12O42]12-, with idealized C2h symmetry.
References
- Asami, M.; Ichida, H.; Sasaki, Y. (1984). "The structure of hexakis(tetramethylammonium) dihydrogendodecatungstate enneahydrate, [(CH3)4N]6[H2W12O40].9H2O". Acta Crystallographica Section C. 40: 35–37. doi:10.1107/S0108270184002924.
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