Phosphirane

Phosphirane
Names
	Preferred IUPAC name Phosphirane
	Systematic IUPAC name Phosphacyclopropane
	Other names Phosphiran
Identifiers
CAS Number	6569-82-0;
3D model (JSmol)	Interactive image;
ChemSpider	10451470;
PubChem CID	15786916;
	InChI InChI=1S/C2H5P/c1-2-3-1/h3H,1-2H2 Key: UTMQOVWWMLZKRY-UHFFFAOYSA-N;
	SMILES C1PC1;
Properties
Chemical formula	C2H5P
Molar mass	60.036 g·mol−1
Appearance	colorless gas
Melting point	−121 °C (−186 °F; 152 K)
Boiling point	36.5 °C (97.7 °F; 309.6 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Phosphirane is the organophosphorus compound with the formula C₂H₄PH. It is a colorless gas of no commercial value. As the simplest cyclic, saturated organophosphorus compound, phosphirane is the prototype of a family of related compounds that have attracted attention from the research community. Phosphirane was first prepared by reaction of 1,2-dichloroethane with the conjugate base of phosphine. Phosphiranes, that is substituted phosphirene compounds where one or more of the H's are replaced organic substituents, are far more commonly discussed than the parent phosphirane.

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