Difluorophosphate

Difluorophosphate
Names
Systematic IUPAC name
Difluorophosphate
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/F2HO2P/c1-5(2,3)4/h(H,3,4)/p-1
    Key: DGTVXEHQMSJRPE-UHFFFAOYSA-M
  • InChI=1/F2HO2P/c1-5(2,3)4/h(H,3,4)/p-1
    Key: DGTVXEHQMSJRPE-REWHXWOFAH
  • [O-]P(=O)(F)F
Properties
PO2F−2
Molar mass 100.97 g mol−1
Structure
Tetracoordinated at phosphorus atom
Tetrahedral at phosphorus atom
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N (what is YN ?)
Infobox references

Difluorophosphate or difluorodioxophosphate or phosphorodifluoridate is an anion with formula PO2F−2. It has a single negative charge and resembles perchlorate (ClO−4) and monofluorosulfonate (SO3F−) in shape and compounds. These ions are isoelectronic, along with tetrafluoroaluminate, phosphate, orthosilicate, and sulfate. It forms a series of compounds. The ion is toxic to mammals as it causes blockage to iodine uptake in the thyroid. However it is degraded in the body over several hours.

Compounds containing difluorophosphate may have it as a simple uninegative ion, it may function as a difluorophosphato ligand where it is covalently bound to one or two metal atoms, or go on to form a networked solid. It may be covalently bound to a non metal or an organic moiety to make an ester or an amide.

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