Chemistry:Monohalomethane
From HandWiki
The monohalomethanes are organic compounds in which a hydrogen atom in methane is replaced by a halogen. They belong to the haloalkanes or to the subgroup of halomethanes.
The four common[lower-alpha 1] members are fluoromethane, chloromethane, bromomethane and iodomethane.
Historical name for this group is methyl halides; it's still widely used. The compounds of this class are often described as CH
3X or MeX (X - any halogen, Me - methyl group).
Related compounds
There are analogs with more than one hydrogen atom in methane is replaced by a halogen:
- Dihalomethane, CH
2X
2, two hydrogen atoms replaced - Trihalomethane, CHX
3, three hydrogen atoms replaced - Tetrahalomethane, CX
4, all four hydrogen atoms replaced
Analogs with carbon atom replaced with a heavier group 14 element are also known:
- Monohalosilane, SiH
3X (with silicon, related to silane) - Monohalogermane, GeH
3X (with germanium, related to germane) - Monohalostannane, SnH
3X (with tin, related to stannane)
See also
- Methyl halide transferase – An enzyme producing some methyl halides
Notes
- ↑ Highly radioactive CH
3At (methyl astatide) has been detected.[1] The known isotopes of even heavier group 17 element, tennessine, are too short-lived to allow for chemical experimentation.
References
- ↑ "Chemical Fact Sheet: Astatine". European Virtual Institute for Speciation Analysis (EVISA). https://speciation.net/Database/Links/Chemical-Fact-Sheet-Astatine-;i2487.
 |  |
