Constitutional isomers

Definition

Constitutional isomers are compounds that have the same molecular formula but differ in the sequence in which their atoms are connected. These variations lead to molecules with distinct physical and chemical properties, despite having the same numbers of each type of atom.

Related terms

Stereoisomers: Compounds that have the same molecular formula and sequence of bonded atoms (constitution), but differ in the three-dimensional orientations of their atoms in space.

Alkanes: Hydrocarbons that contain only single bonds between carbon atoms, forming a saturated hydrocarbon chain or structure.

Molecular Formula: A representation of the number and type of atoms present in a molecule but not showing how they are connected or arranged