Structural Isomerism, Constitutional Isomerism - Organic Chemistry
In this video we want to discuss Structural or Constitutional Isomerism in Organic Chemistry.
Structural or constitutional isomers have the same molecular formula but different structural formula.
They are very different compounds with different names, physical and chemical properties.
We have 3 types of structural isomerism - chain, positional and functional group isomerism.
1. Chain Isomerism
Chain isomers differ in the way the carbon chain is branched.
Using C5H12 as an example, we can have a total of 3 chain isomers:
2. Positional Isomerism
Positional isomers have the same functional group but attached to a different carbon.
Using chloropropane as an example, the positional isomers are:
3. Functional Group Isomerism
Functional Group isomers have the same molecular formula but have different functional groups.
For instance C6H12, the two functional group isomers are hexene and cyclohexane.
For the detailed step-by-step discussion on the 3 different types of Structural Isomerism, check out this video!
Topic: Introduction to Organic Chemistry, Organic Chemistry, A Level Chemistry, Singapore
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