Triisopropylphosphine

Triisopropylphosphine

Skeletal formula Space-filling model
Names
Other names Triisopropylphosphine PiPr3 Pi-Pr3
Identifiers
CAS Number	6476-36-4 N
ChemSpider	73055 N
Jmol 3D model	Interactive image
PubChem	24863218
InChI InChI=1S/C9H21P/c1-7(2)10(8(3)4)9(5)6/h7-9H,1-6H3 N Key: IGNTWNVBGLNYDV-UHFFFAOYSA-N N InChI=1/C9H21P/c1-7(2)10(8(3)4)9(5)6/h7-9H,1-6H3 Key: IGNTWNVBGLNYDV-UHFFFAOYAM
SMILES CC(C)P(C(C)C)C(C)C
Properties
Chemical formula	C9H21P
Molar mass	160.24 g mol−1
Appearance	colourless liquid
Density	0.839 g/mL
Boiling point	81 °C (178 °F; 354 K) (22 mm Hg)
Solubility in water	good in alkanes
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
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.

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.