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Periodic Table/Compounds/phosphaniumyl

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© Melvin Olsson 2025–2026
Data: IAEA & PubChem

phosphaniumyl

H₃P+·33.998 g/mol·CID 5460505

Also known as: PH3+, CHEBI:30280, PH3(.+), [PH3](.+), 97419-07-3

2D structure of phosphaniumyl

Molecular Structure

Molecular Propertiesmass · H-bonds · stereo

Molecular Weight

33.998g/mol

Exact Mass

33.997237Da

Monoisotopic Mass

33.997237Da

XLogP

-0.1

Polar Surface Area

0.0Ų

Complexity

0

Formal Charge

1

H-Bond Donors

0

H-Bond Acceptors

0

Rotatable Bonds

0

Heavy Atoms

1

Stereo Centers

0

Bond Stereo

0

Drug-Likeness (Lipinski's Rule of Five)

✓ 34.0 g/mol
MW ≤ 500
✓ -0.1
LogP ≤ 5
✓ 0
H-bond donors ≤ 5
✓ 0
H-bond acceptors ≤ 10

Passes all rules — good oral bioavailability predicted

Chemical IdentifiersSMILES · InChI

InChI

InChI=1S/H3P/h1H3/q+1

Isomers8 compounds with formula H₃P+

2D structure of phosphane

phosphane

CID 24404 · 34.0 g/mol

2D structure of trideuteriophosphane

trideuteriophosphane

CID 139493 · 37.0 g/mol

2D structure of hydron;phosphorus(3-)

hydron;phosphorus(3-)

CID 22257263 · 34.0 g/mol

2D structure of phosphane

phosphane

CID 26751 · 35.0 g/mol

2D structure of dideuteriophosphane

dideuteriophosphane

CID 139599 · 36.0 g/mol

2D structure of phosphane

phosphane

CID 161144 · 36.0 g/mol

2D structure of phosphane

phosphane

CID 10153977 · 34.0 g/mol

2D structure of protiophosphane

protiophosphane

CID 139504 · 34.0 g/mol

External Resources

PubChem ↗Wikipedia ↗