Organic halide
An organic halide has a halogen atom (fluorine, chlorine, bromine, or iodine) bonded to a carbon in the chain. Unlike the other functions on this list, the halogen never becomes the name's suffix — it's always treated as a substituent (prefix), even when it's the only group present in the molecule.
General formula
R–X (X = F, Cl, Br, I)
Naming rule
Name = [fluoro/chloro/bromo/iodo]- + base hydrocarbon name, with the lowest possible locant (e.g., 1-chlorobutane, not 4-chlorobutane).
Examples
| Name | Formula |
|---|---|
| Chloromethane | CH₃Cl |
| 1-bromopropane | C₃H₇Br |
| Dichloromethane | CH₂Cl₂ |
| Trichloromethane (chloroform) | CHCl₃ |