Metatungstate

M12O40 cage in 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]8- has Td symmetry.[1]

One of four equivalent subunit of the M12O40 cage in metatungstate.

See also

  • Paratungstate [W12O42]12-, with idealized C2h symmetry.

References

  1. ^ 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.
  • v
  • t
  • e
Tungsten compounds
Tungsten(0)
  • W(CO)6
  • W(PMe3)6
Tungsten(II)
  • WSi2
  • WCl2
  • WI2
  • W(OH)2
  • W2(hpp)4
Tungsten(III)
  • W2O3
  • WCl3
  • WI3
  • W2(OtBu)6
Tungsten(IV)
  • WC
  • WO2
  • WS2
  • WSe2
  • WTe2
  • WF4
  • WCl4
  • WBr4
  • WI4
Tungsten(V)
  • W2O5
  • WBr5
  • W2Cl10
  • LiWF6
Tungsten(VI)
  • WO2Cl2
  • WBr6
  • WCl6
  • WF6
  • WN2
  • WO3
  • WS3
  • WAs2
  • WOBr4
  • WOCl4
  • WOF4
  • H2WO4
Organotungsten(VI) compounds
  • W(CH3)6
Polytungstate salts
  • H3PW12O40
  • (NH4)10(H2W12O42)
  • Na6[H2W12O40]