Triphosphane

See also: triphos

Triphosphane (IUPAC systematic name) or triphosphine is an inorganic compound having the chemical formula HP(PH₂)₂. It can be generated from diphosphine but is highly unstable at room temperature:^[3]

2 P₂H₄ → P₃H₅ + PH₃

Triphosphane

Structural formula of triphosphane Ball-and-stick model
Names
Systematic IUPAC name Triphosphane[1]
Other names Triphosphine[2]
Identifiers
CAS Number	13597-70-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:35893 N
ChemSpider	123032 N
PubChem CID	139510
CompTox Dashboard (EPA)	DTXSID80159606
InChI InChI=1S/H5P3/c1-3-2/h3H,1-2H2 N Key: ITHPEWAHFNDNIO-UHFFFAOYSA-N N
SMILES PPP
Properties
Chemical formula	P3H5
Molar mass	97.96099 g·mol−1
Appearance	Colourless gas
Related compounds
Other anions	triazane
Related Binary phosphanes	phosphane diphosphane
Related compounds	triazene
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

Samples have been isolated by gas chromatography. The compound rapidly converts to PH₃ and the cyclophosphine cyclo-P₅H₅.^[4]