Molybdenum oxytetrachloride

Molybdenum(VI) oxytetrachloride

Identifiers
CAS Number	13814-75-0  Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:30698
ChemSpider	19060258
ECHA InfoCard	100.156.445
EC Number	628-149-2
PubChem CID	4084870  (formula error)
CompTox Dashboard (EPA)	DTXSID501298196
InChI Key: UYEGPKGLVUUIGD-UHFFFAOYSA-J InChI=1S/4ClH.O.Mo/h4*1H;;/q;;;;-2;/p-4
SMILES [O-2].[Cl-].[Cl-].[Cl-].[Cl-].[Mo]
Properties
Chemical formula	MoOCl4
Molar mass	253.75 g·mol−1
Appearance	dark green solid
Melting point	100–101 °C (212–214 °F; 373–374 K)
Solubility in water	reacts
Solubility	soluble in benzene and CS2
Hazards
GHS labelling: [1]
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P405, P501
Related compounds
Other anions	Molybdenum oxytetrafluoride
Other cations	Tungsten oxytetrachloride
Related compounds	Molybdenum dichloride dioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Molybdenum oxytetrachloride is the inorganic compound with the formula Mo O Cl ₄. This thermally unstable, dark green solid is used to prepare other complexes of molybdenum. Its molecule adopts a square pyramidal molecular geometry of C_4v symmetry. As for other Mo(VI) compounds, it is diamagnetic. It decomposes thermally to MoOCl₃.

Preparation

It is prepared by treating molybdenum pentachloride with oxygen. ^[2] It also arises by chlorination of molybdenum trioxide: ^[3]

MoO₃ + 2 SOCl₂ → MoOCl₄ + 2 SO₂

See also

• Molybdenum dichloride dioxide

References

1. "Molybdenum(VI) tetrachloride oxide". pubchem.ncbi.nlm.nih.gov.
2. Mallock, Alan K. (1967). "Molybdenum(VI) Oxide Chloride". Inorganic Syntheses. Inorganic Syntheses. Vol. 10. pp. 54–57. doi:10.1002/9780470132418.ch8. ISBN   9780470132418.
3. Nielson, A. J. (1985). "Tungsten and Molybdenum Tetrachloride Oxides". Inorganic Syntheses. Inorganic Syntheses. Vol. 23. pp. 323–325. doi:10.1002/9780470132548.ch41. ISBN   9780470132548.