Monohalomethane
| Structural formula | ||||
| Name | Fluoromethane Methyl fluoride |
Chloromethane Methyl chloride |
Bromomethane Methyl bromide |
Iodomethane Methyl iodide |
| Melting point | −137,8 °C | −97,4 °C | −93,7 °C | −66 °C |
| Boiling point | −78,4 °C | −23,8 °C | 4,0 °C | 42 °C |
| Space-filling model |
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 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 CH3X or MeX (X - any halogen, Me - methyl group).