Tungsten(VI) oxytetrachloride

Chembox new
Name = Tungsten(VI) oxytetrachloride
ImageFile = WOCl4.png ImageSize = 160px
ImageName = Tungsten oxytetrachloride
OtherNames =
Section1 = Chembox Identifiers
CASNo = 13520-78-0
Section2 = Chembox Properties
Formula = WOCl₄
MolarMass = 341.65 g/mol
Appearance = red crystals
Density = 11.92 g/cm³, solid
MeltingPt = 211 °C
BoilingPt = 227.55 °C
Solubility = reacts
Section3 = Chembox Structure
CrystalStruct =

Solubility
reacts with water
soluble in benzene, CS₂
-
Heat of fusion
131.714 J/g
-
Heat of vaporization
198.449 J/g
-
Section7 = Chembox Hazards
EUClass = not listed

Tungsten(VI) oxytetrachloride is the inorganic compound with the formula WOCl₄. This diamagnetic solid is used to prepare other complexes of tungsten. The orange-coloured compound is soluble in nonpolar solvents but it reacts with alcohols and water and forms adducts with Lewis bases. The solid consists of weakly associated square pyramidal monomers.

WOCl₄ is prepared from tungsten trioxide: [cite journal | isbn = 0-471-81873-9 | author = Nielson, A. J. | title = Tungsten and Molybdenum Tetrachloride Oxides | journal = Inorg. Synth. | year = 1985 | volume = 23 | pages = 195-198] :WO₃ + 2 SOCl₂ → WOCl₄ + 2 SO₂

References