Vanadium(V) oxytrifluoride

Vanadium(V) oxytrifluoride

Names
Other names Vanadium oxyfluoride Trifluorooxovanadium
Identifiers
CAS Number	13709-31-4  Y
3D model (JSmol)	Interactive image
ChemSpider	10329766
ECHA InfoCard	100.033.849
PubChem CID	123322
SMILES O=[V](F)(F)F
Properties
Chemical formula	VOF3
Molar mass	123.9599 g/mol
Appearance	yellowish orange powder
Density	2.4590 g/cm3
Melting point	300 °C (572 °F; 573 K)
Boiling point	480 °C (896 °F; 753 K)
Solubility in water	insoluble
Hazards
GHS labelling: [1]
Pictograms
Signal word	Danger
Hazard statements	H302, H312, H314, H332
Precautionary statements	P260, P261, P264, P270, P271, P280, P301+P310, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P322, P330, P361, P363, P405, P501
NFPA 704 (fire diamond)	3
Related compounds
Related compounds	Vanadium(V) fluoride Vanadium(V) oxytrichloride Vanadium dioxyfluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y  verify  (what is  YN ?) Infobox references

Vanadium(V) oxytrifluoride is a chemical compound with the formula V O F₃. It is one of several vanadium(V) oxyhalides. VOF₃ is a yellowish orange powder that is sensitive to moisture. ^[2] Characteristic of early metal fluorides, the structure is polymeric in the solid state. The solid adopts a layered structure but upon evaporation, the species becomes dimeric. In contrast VOCl₃ and VOBr₃ remain tetrahedral in all states, being volatile liquids at room temperature. ^[3]

Reactions

In organic synthesis, VOF₃ is used for the oxidative coupling of phenols, for example in the syntheses of vancomycin and its analogues. ^[4] For these applications VOF₃ is typically dissolved in trifluoroacetic acid.

Vanadium(V) oxytrifluoride reacts with hexamethyldisiloxane to give vanadium dioxide fluoride: ^[5]

(CH₃)₃SiOSi(CH₃)₃ + VOF₃ → VO₂F + 2 (CH₃)₃SiF

References

1. "Trifluorooxovanadium". pubchem.ncbi.nlm.nih.gov.
2. Perry, Dale L. (2011). Handbook of Inorganic Compounds. CRC Press. ISBN   978-1-4398-1461-1.
3. Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN   0-12-352651-5.
4. Vanasse, Benoit; O'Brien, Michael K. (2001). "Vanadyl Trifluoride". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rv005. ISBN   0471936235.
5. Davis, Martin F.; Jura, Marek; Leung, Alethea; Levason, William; Littlefield, Benjamin; Reid, Gillian; Webster, Michael (2008). "Synthesis, Chemistry and Structures of Complexes of the Dioxovanadium(v) Halides VO₂F and VO₂Cl". Dalton Transactions (44): 6265–6273. doi:10.1039/b811422f. PMID   18985260.