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methenium
Sign in to saveAlso known as methyl cation, methylium, protonated methylene, carbenium, trihydridocarbon(1+), carbanylium, [CH3](+), CH3(+)
In organic chemistry, methenium (also called methylium, carbenium, methyl cation, or protonated methylene) is a cation with the formula . It can be viewed as a methylene radical (:) with an added proton (), or as a methyl radical (•) with one electron removed. It is a carbocation and an enium ion, making it the simplest of the carbenium ions.
Chemical data
- Formula
- CH3+
- Molecular weight
- 15.035 g/mol
- IUPAC name
- carbanylium
- SMILES
- [CH3+]
- InChIKey
- JUHDUIDUEUEQND-UHFFFAOYSA-N
- XLogP
- 0.6
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 1
via PubChem
Wikidata facts
- Subclass of
- carbenium ion
- Mass
- 15.023475
Show 4 more facts
- conjugate base
- methylene
- canonical SMILES
- [CH3+]
- Commons category
- Methyl cation
- chemical formula
- CH₃⁺
Sources (2)
via Wikidata · CC0
~2 min read
Encyclopedic overview
6 sectionsContents
- Structure
- Preparation and reactions
- Detection
- Origins of life
- See also
- References
In organic chemistry, methenium (also called methylium, carbenium, methyl cation, or protonated methylene) is a cation with the formula . It can be viewed as a methylene radical (:) with an added proton (), or as a methyl radical (•) with one electron removed. It is a carbocation and an enium ion, making it the simplest of the carbenium ions.
==Structure== Experiments and calculations generally agree that the methenium ion is planar, with threefold symmetry. The carbon atom is a prototypical (and exact) example of sp2 hybridization.
Excerpted from Wikipedia’s “methenium” article, available under the CC BY-SA 4.0 licence.