Structure via PubChem · Public domain (PubChem)
dioxygen
Sign in to saveAlso known as O2, O₂, oxygen, molecular oxygen, diatomic oxygen, triplet oxygen, oxygen gas, liquid oxygen
REDIRECT Allotropes of oxygen#Dioxygen
Chemical data
- Formula
- O2
- Molecular weight
- 31.999 g/mol
- IUPAC name
- molecular oxygen
- SMILES
- O=O
- InChIKey
- MYMOFIZGZYHOMD-UHFFFAOYSA-N
- XLogP
- -1.1
- Polar surface area
- 34.1 Ų
- H-bond donors
- 0
- H-bond acceptors
- 2
- Formal charge
- 0
via PubChem
Wikidata facts
- Subclass of
- allotrope of oxygen
- Has part
- oxygen
- Followed by
- dioxygenyl ion
- Mass
- 31.998
- Image
- Liquid oxygen in a beaker 4.jpg
Show 18 more facts
- found in taxon
- Homo sapiens
- Commons category
- Dioxygen
- chemical formula
- O₂
- canonical SMILES
- O=O
- speed of sound
- 330
- NCI Thesaurus ID
- C722
- contributing factor of
- conflagration
- standard molar entropy
- 205.1
- subject has role
- primary metabolite
- specific heat capacity
- 920
- thermal conductivity
- 0.026
- density
- 1.429
- crystal system
- cubic crystal system
- different from
- oxygen
- melting point
- -218.79
- boiling point
- -182.95
- electric dipole moment
- 0
- ionization energy
- 12.07
Sources (7)
via Wikidata · CC0
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Encyclopedic overview
REDIRECT Allotropes of oxygen#Dioxygen
Excerpted from Wikipedia’s “dioxygen” article, available under the CC BY-SA 4.0 licence.