Structural Isomers
What is Structural Isomers?
Structural isomers (constitutional isomers) are molecules that have the same molecular formula but different connectivity — the atoms are bonded in a different order or arrangement. For example, butane (CH₃CH₂CH₂CH₃) and isobutane ((CH₃)₃CH) are structural isomers of C₄H₁₀. They have different physical and chemical properties. Structural isomers include chain isomers, position isomers, and functional group isomers.
Key Facts
Frequently Asked Questions
Structural isomers (constitutional isomers) are molecules that have the same molecular formula but different connectivity — the atoms are bonded in a different order or arrangement. For example, butane (CH₃CH₂CH₂CH₃) and isobutane ((CH₃)₃CH) are structural isomers of C₄H₁₀. They have different physical and chemical properties. Structural isomers include chain isomers, position isomers, and functional group isomers.