Triisopropylphosphine

Triisopropylphosphine
Properties
Molecular formula C9H21P
Molar mass 160.24 g mol-1
Appearance colourless liquid
Density 0.839 g/mL
Boiling point

81 °C (22 mm Hg)

Solubility in water good in alkanes
Hazards
Main hazards spontaneously flammable
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Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Triisopropylphosphine is the tertiary phosphine with the formula P(CH(CH3)2)3. Commonly used as a ligand in organometallic chemistry, it is often abbreviated to Pi-Pr3 or PiPr3. This ligand is one of the most basic alkyl phosphines with a large ligand cone angle of 160.[1]

Pi-Pr3 is similar to the more frequently used tricyclohexylphosphine. The triisopropyl derivative however, is a liquid at room temperature and more soluble in hydrocarbons.

References

  1. ^ C. A. Tolman (1977). "Steric Effects of Phosphorus Ligands in Organometallic Chemistry and Homogeneous Catalysis". Chem. Rev. 77 (4): 313–348. doi:10.1021/cr60307a002.