4.1 Stereoisomerism
Isomerism
Structural Isomerism Stereoisomerism
Chain Position Functional Geometric Optical
Structural Isomerism – Same molecular formula but different structure
1. Chain isomerism – different length carbon chain
Butane
Methylpropane
2. Position isomerism – functional group is on a different carbon on the chain
Pent-2-ene Pent-1-ene
3. Functional group isomerism – rearrangement of atoms to form a different functional group
Aldehydes Ketones
Carboxylic Acids Esters
Alkenes Cyclic alkanes
Isomerism
Structural Isomerism Stereoisomerism
Chain Position Functional Geometric Optical
Structural Isomerism – Same molecular formula but different structure
1. Chain isomerism – different length carbon chain
Butane
Methylpropane
2. Position isomerism – functional group is on a different carbon on the chain
Pent-2-ene Pent-1-ene
3. Functional group isomerism – rearrangement of atoms to form a different functional group
Aldehydes Ketones
Carboxylic Acids Esters
Alkenes Cyclic alkanes