Structural Isomers of Organic Compounds

The structural isomers of some common organic compounds are mentioned below:

Structural Isomers of Butane

Butane has a molecular formula of C₄H₁₀. There are two possible isomers of butane mentioned below:

• n-Butane, also called as unbranched butane (IUPAC: butane)
• Iso butane, also called as i-butane (IUPAC: 2-methylpropane)

Structural Isomers of Pentane

Pentane has a molecular formula of C₅H₁₂. There are three possible structural isomers of pentane mentioned below:

• n-Pentane, also called as unbranched pentane (IUPAC: pentane)
• Iso pentane (IUPAC: 2-methyl butane)
• Neo pentane (IUPAC: 2,2-dimethylpropane)

Structural Isomers of Hexane

Hexane has a molecular formula of C6H14. There are 5 isomers of hexane. Following are their IUPAC name:

• n-hexane
• 2-methyl pentane
• 3-methyl pentane
• 2,2-dimethyl butane
• 2,3-dimethyl butane

Structural Isomers of Heptane

Heptane has a molecular formula of C₇H₁₆. There are 9 isomers of heptane. Following are their IUPAC name:

• n-heptane
• 2-Methylhexane
• 3-Methylhexane
• 2,2-Dimethylpentane
• 2,3-Dimethylpentane
• 2,4-Dimethylpentane
• 3,3-Dimethylpentane
• 3-Ethylpentane
• 2,2,3-Trimethylbutane

Structural Isomerism is the phenomenon of organic compound having same molecular formula but different structural arrangements. The compounds which shows the property of structural isomerism are called Structural Isomers. There are in total six types of structural isomerism.

In this article, we will learn in detail about structural isomers, structural isomerism, its types and examples in detail. Before getting into Structural Isomerism, let’s understand first What is an Isomer?