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diphosphane
Sign in to saveAlso known as P2H4, diphosphine, biphosphine
Diphosphane, or diphosphine, is an inorganic compound with the chemical formula . This colourless liquid is one of several binary phosphorus hydrides. It is the impurity that typically causes samples of phosphine to ignite in air.
Chemical data
- Formula
- H4P2
- Molecular weight
- 65.979 g/mol
- IUPAC name
- phosphanylphosphane
- SMILES
- PP
- InChIKey
- VURFVHCLMJOLKN-UHFFFAOYSA-N
- XLogP
- -0.2
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 65.979
Show 3 more facts
- Commons category
- Diphosphane
- canonical SMILES
- PP
- chemical formula
- H₄P₂
Sources (2)
via Wikidata · CC0
~2 min read
Article
4 sectionsContents
- Properties, preparation, reactions
- Organic diphosphanes
- See also
- References
Diphosphane, or diphosphine, is an inorganic compound with the chemical formula . This colourless liquid is one of several binary phosphorus hydrides. It is the impurity that typically causes samples of phosphine to ignite in air.
==Properties, preparation, reactions== Diphosphane adopts the gauche conformation (like hydrazine, less symmetrical than shown in the image) with a P−P distance of 2.219 angstroms. It is nonbasic, unstable at room temperature, and spontaneously flammable in air. It is only poorly soluble in water but dissolves in organic solvents. Its 1H NMR spectrum consists of 32 lines resulting from an A2XX'A'2 splitting system.