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Diphosphene
Identifiers
CAS Number	41916-72-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	125761 ;
PubChem CID	142559;
CompTox Dashboard (EPA)	DTXSID50194680 ;
	InChI InChI=1S/H2P2/c1-2/h1-2H Key: SWJAOBXRZSMKNS-UHFFFAOYSA-N ;
	SMILES P=P;
Properties
Chemical formula	P; 2H; 2
Molar mass	63.96340 g·mol−1
Related compounds
Other anions	diazene
Other cations	diphosphenes
Related Binary azenes	triazene; tetrazene
Related compounds	ammonia; diazane; triazane
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Diphosphene is a compound having the formula (PH)₂. It exists as two geometric isomers, E and Z.^[1] Diphosphene is also the parent member of the entire class of diphosphene compounds with the formula (PR)₂, where R is an organyl group.^[2]

References

^ Lu, T.; Simmonett, A. C.; Evangelista, F. A.; Yamaguchi, Y.; Schaefer, H. F. (2009). "Diphosphene and Diphosphinylidene". The Journal of Physical Chemistry A. 113 (47): 13227–13236. Bibcode:2009JPCA..11313227L. doi:10.1021/jp904028a. PMID 19594123.
^ Yoshifuji, M.; Shibayama, K.; Inamoto, N.; Hirotsu, K.; Higuchi, T. (1983). "Reaction of the diphosphene ArP=PAr (Ar = 2,4,6-Bu^t₃C₆H₂) with sulphur: isolation and X-ray structure of the diphosphene monosulphide". Journal of the Chemical Society, Chemical Communications. 1983 (16): 862–863. doi:10.1039/C39830000862.