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butylmethylimidazolium
Sign in to saveAlso known as N-butyl-N'-methylimidazolium, [bmim], [C4mim], C4mim
C4mim is a shorthand for the 1-butyl-3-methylimidazolium cation; where C4 refers to the butyl group. It is also abbreviated Bmim, and (rarely) Bumim. Salts containing this imidazole cation are ionic liquids. A common example of such is [C4mim][Cl], or 1-butyl-3-methylimidazolium chloride. Other examples include BMIM-PF6, [Bmim]BF4, and C4mim-FeCl4, the latter of which is a magnetic ionic liquid.
Chemical data
- Formula
- C8H15N2+
- Molecular weight
- 139.22 g/mol
- IUPAC name
- 1-butyl-3-methylimidazol-3-ium
- SMILES
- CCCCN1C=C[N+](=C1)C
- InChIKey
- IQQRAVYLUAZUGX-UHFFFAOYSA-N
- XLogP
- 1.3
- Polar surface area
- 8.8 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 1
via PubChem
Drug data · ChEMBL
- Molecule type
- Small molecule
via ChEMBL · EBI
Wikidata facts
- Subclass of
- chemical compound
- Mass
- 139.12297490009
Show 2 more facts
- chemical formula
- C₈H₁₅N₂⁺
- canonical SMILES
- CCCCN1C=C[N+](=C1)C
via Wikidata · CC0
~1 min read
Encyclopedic overview
3 sectionsContents
- See also
- References
- External links
C4mim is a shorthand for the 1-butyl-3-methylimidazolium cation; where C4 refers to the butyl group. It is also abbreviated Bmim, and (rarely) Bumim. Salts containing this imidazole cation are ionic liquids. A common example of such is [C4mim][Cl], or 1-butyl-3-methylimidazolium chloride. Other examples include BMIM-PF6, [Bmim]BF4, and C4mim-FeCl4, the latter of which is a magnetic ionic liquid.
These salts are currently of interest in industry due to their ability to be infinitely recycled and their amenability to solvation at room temperature, making them excellent green solvents. C4mim is based on the parent compound 1-butyl-3-methylimidazole with one electron removed from the imidazole arene group. The stability of this cation lies in the fact that the resulting electronic vacancy is delocalized across the arene group, albeit unequally so. thumb|left|Chemical structure of 1-butyl-3-methylimidazolium chloride
Excerpted from Wikipedia’s “butylmethylimidazolium” article, available under the CC BY-SA 4.0 licence.