Chemistry:Triisopropylphosphine

Short description: Chemical compound

Triisopropylphosphine

Names
Preferred IUPAC name Tri(propan-2-yl)phosphane
Other names Triisopropylphosphine PiPr3 Pi-Pr3
Identifiers
CAS Number	6476-36-4 Y
3D model (JSmol)	Interactive image
ChemSpider	73055 N
PubChem CID	24863218
UNII	MDE86CLL2B Y
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
Hazards
Main hazards	spontaneously flammable
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

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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.