In chemistry, a conjugated system is a system of connected p orbitals with delocalized electrons in a molecule, which in general lowers the overall energy of the molecule and increases stability. It is conventionally represented as having alternating single and multiple bonds.

What means conjugated system?

conjugated system, in a covalent chemical compound, a group or chain of atoms bearing valence electrons that are not engaged in single-bond formation and that modify the behaviour of each other.

What makes a conjugated system?

A conjugated system is a system of connected p-orbitals with delocalized electrons in compounds with alternating single and multiple bonds, which in general may lower the overall energy of the molecule and increase stability. Lone pairs, radicals or carbenium ions may be part of the system.