DF9

Isomerism

Two molecules that have the same molecular formula but differ in atomic arrangement are isomers of each other.

• Differemt physical properties

• Often different chemical properties

Structural Isomerism

Structural isomers have the same molecular formula but with a different structural formula

Chain Isomerism

• 4 or more carbon atoms

• Different chain arrangements

Position Isomerism

• Functional group situated in different position on carbon chain

Functional Group Isomerism

• Same molecular formula, but different functional groups

• Different homologoues series

Stereoisomerism

• Same structural formula

• Differ in atom

• Two kinds

  • E/Z

  • Optical

    • Not required

E/Z Isomerism

• No free rotation due to \(\pi\) bond

• E

  • Different sides (Entgegen)

• Z

  • “Z”ame “Z”ide (Zusammen)