It is the isomerism where compounds are identified by their flat structural formulas.
It is divided into flat isomer of chain, position, metameria, function and tautomeria.
Chain Flat Isomeria
This isomerism occurs when isomers belong to the same function but differ in the type of carbon chain. Examples:
Flat position isomer
It occurs between isomers that belong to the same function, have the same type of chain, but differ in the position of radicals, unsaturations or functional groups. Examples:
- difference in position of radicals:
- difference in unsaturation position:
- difference in functional group position: