{{See also|Triphos (disambiguation){{!}}triphos}} {{Use dmy dates|date=June 2023}} {{Chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 443287364 | ImageFileL1 = Triphosphine.svg | ImageFileL1_Ref = {{chemboximage|correct|??}} | ImageSizeL1 = | ImageNameL1 = Structural formula of triphosphane | ImageFileR1 = Triphosphane-3D-balls.png | ImageSizeR1 = | ImageNameR1 = Ball-and-stick model | SystematicName = Triphosphane<ref>{{Cite web|title = triphosphane (CHEBI:35893)|url = https://www.ebi.ac.uk/chebi/searchId.do?chebiId=35893|work = Chemical Entities of Biological Interest (ChEBI)|publisher = European Bioinformatics Institute|accessdate = 27 September 2011|location = UK|date = 7 June 2006|at = Main}}</ref> | OtherNames = Triphosphine<ref>{{Cite web|title = Triphosphine|url = http://webbook.nist.gov/cgi/cbook.cgi?ID=13597-70-1|work = NIST Chemistry WebBook|publisher = National Institute of Standards and Technology|accessdate = 27 September 2011|location = USA}}</ref> |Section1={{Chembox Identifiers | CASNo_Ref = {{cascite|correct|??}} | CASNo = 13597-70-1 | PubChem = 139510 | ChemSpiderID = 123032 | ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}} | ChEBI = 35893 | ChEBI_Ref = {{ebicite|changed|EBI}} | SMILES = PPP | StdInChI = 1S/H5P3/c1-3-2/h3H,1-2H2 | StdInChI_Ref = {{stdinchicite|changed|chemspider}} | StdInChIKey = ITHPEWAHFNDNIO-UHFFFAOYSA-N | StdInChIKey_Ref = {{stdinchicite|changed|chemspider}} }} |Section2={{Chembox Properties | Formula = {{chem2|P3H5}} | MolarMass = 97.96099 g·mol<sup>−1</sup> | Appearance = Colourless gas }} |Section9={{Chembox Related | OtherAnions = triazane | OtherCations = | OtherFunction_label = Binary phosphanes | OtherFunction = phosphane<br>diphosphane | OtherCompounds = triazene }} }}
'''Triphosphane''' (IUPAC systematic name) or '''triphosphine''' is an inorganic compound having the chemical formula {{chem2|HP(PH2)2}}. It can be generated from diphosphine but is highly unstable at room temperature:<ref>{{Greenwood&Earnshaw2nd}}</ref>
:{{chem2|2 P2H4 → P3H5 + PH3}} Samples have been isolated by gas chromatography. The compound rapidly converts to {{chem2|PH3}} and the cyclophosphine ''cyclo''-{{chem2|P5H5}}.<ref>{{cite journal | author = Marianne Baudler, Klaus Glinka | title = Monocyclic and Polycyclic Phosphines | journal = Chem. Rev. | year = 1993 | volume = 93 | pages = 1623–1667 | doi = 10.1021/cr00020a010}}</ref>
== References ==
{{Reflist}}
==External links== *[http://goldbook.iupac.org/P04548.html IUPAC] *[http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:35893 CHEBI]
{{Hydrides by group}}
Category:Phosphines Category:Phosphorus hydrides