Structure via PubChem · Public domain (PubChem)
neopentane
Sign in to saveAlso known as (CH3)4C, mono-tert-butylmethane, dimethylpropane, 2,2-dimethylpropane, tetramethylmethane
Neopentane, also called 2,2-dimethylpropane, is a double-branched-chain alkane with five carbon atoms, with the chemical formula . Neopentane is a flammable gas at room temperature and pressure which can condense into a highly volatile liquid on a cold day, in an ice bath, or when compressed to a higher pressure.
Chemical data
- Formula
- C5H12
- Molecular weight
- 72.15 g/mol
- IUPAC name
- 2,2-dimethylpropane
- SMILES
- CC(C)(C)C
- InChIKey
- CRSOQBOWXPBRES-UHFFFAOYSA-N
- XLogP
- 2.5
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 72.094
Show 10 more facts
- canonical SMILES
- CC(C)(C)C
- Commons category
- Neopentane
- chemical formula
- C₅H₁₂
- boiling point
- 9.48
- electric dipole moment
- 0
- ionization energy
- 10.21
- melting point
- -16.6
- density
- 0.627
- standard enthalpy of formation
- -168
- refractive index
- 1.342
via Wikidata · CC0
~4 min read
Article
7 sectionsContents
- Nomenclature
- Physical properties
- Boiling and melting points
- <sup>1</sup>H NMR spectrum
- Derivatives
- References
- External links
Neopentane, also called 2,2-dimethylpropane, is a double-branched-chain alkane with five carbon atoms, with the chemical formula . Neopentane is a flammable gas at room temperature and pressure which can condense into a highly volatile liquid on a cold day, in an ice bath, or when compressed to a higher pressure.
Neopentane is the simplest alkane with a quaternary carbon, and has achiral tetrahedral symmetry. It is one of the three structural isomers with the molecular formula C5H12 (pentanes), the other two being n-pentane and isopentane. Out of these three, it is the only one to be a gas at standard conditions; the others are liquids.