# Structural Isomerism

Structural isomers are those isomers in which the atoms are completely arranged in a different order with the same molecular formulas.

These are the molecules having the same kind of molecular formula with different connectivities depending upon the order they are put together. The structure of Alkane (C4H10) is one of the simple examples representing a structural isomer with different isomers. With the increase in the number of Carbon atoms in the alkane molecule, the structural isomers increase.

## Structural Isomerism

The isomers differing in the atomic arrangement of the molecules without any kind of reference to the spatial arrangement are known as the structural isomers. The phenomenon of this structural isomers is called as structural isomerism.

The Structural isomerism is also called as constitutional isomerism as per the IUPAC. It is kind of isomerism where the molecules having the same molecular formula with different orders and bondings, as opposed to that of the stereoisomerism.