Structure via PubChem · Public domain (PubChem)
Diphosphorus is an inorganic chemical with the chemical formula . Unlike nitrogen, its lighter pnictogen neighbor which forms a stable N2 molecule with a nitrogen to nitrogen triple bond, phosphorus prefers a tetrahedral form P4 because P-P pi-bonds are high in energy. Diphosphorus is, therefore, very reactive with a bond-dissociation energy (117 kcal/mol or 490 kJ/mol) half that of dinitrogen. The bond distance has been measured at 1.8934 Å.
Chemical data
- Formula
- P2
- Molecular weight
- 61.947524 g/mol
- IUPAC name
- phosphanylidynephosphane
- SMILES
- P#P
- InChIKey
- FOBPTJZYDGNHLR-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
- Subclass of
- allotrope of phosphorus
- Has part
- phosphorus
- Mass
- 61.947523
Show 3 more facts
- canonical SMILES
- P#P
- chemical formula
- P₂
- Commons category
- Diphosphorus
Sources (2)
via Wikidata · CC0