Phosphorus pentaiodide

Phosphorus pentaiodide
Names
IUPAC name
Phosphorus(V) iodide
Other names
  • Pentaiodophosphorane
  • Pentaiodophosphorus
  • Phosphorus pentaiodide
  • Tetraiodophosphonium iodide
Identifiers
3D model (JSmol)
  • InChI=1S/I5P/c1-6(2,3,4)5
    Key: NCCBCEHAGCSKEA-UHFFFAOYSA-N
  • P(I)(I)(I)(I)I
Properties
PI5
Molar mass 665.49611 g·mol−1
Appearance Brown-black crystalline solid (disputed)
Melting point 41 °C (106 °F; 314 K) (disputed)
Related compounds
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Phosphorus pentaiodide is a hypothetical inorganic compound with formula PI5. The existence of this compound has been claimed intermittently since the early 1900s. The claim is disputed: "The pentaiodide does not exist (except perhaps as PI3·I2, but certainly not as [PI4]+I−...)".

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