Isomers

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Isomers

• Organic Chemistry

Starring Student of the Year Heed
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Isomers (different compounds with same empirical
fourmulas)

• Constitutional Isomers
• Different Connectivity
• EX C4H10 butane vs isobutane
• Stereoisomers (Same Connectivity)
• Diastereoisomers
• Enantiomers

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Diastereoisomers(mirror images)
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Enantiomers(Different 3D Orientationaround
chiral Carbons)
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Naming Enantiomers(R/S Determination)

• NOTE 1 Priority is proportional to atomic
  number.
• NOTE 2 For atomic numbers totals sum up and
  unsaturated bonds multiply.
• NOTE 3 R (clockwise), S (counter clockwise)

• STEP 1 Find chiral carbon.
• STEP 2 Prioritize.
• STEP 3 Orient lowest priority away.
• STEP 4 Circle through first three
  prioritizations.

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Determining R/S Names
This one appears to be S, but the 4 is facing
you. This means that it is actually R. R
2-chloro, butane.
This one appears to be S, and the 4 is facing
away. This means that it is S. S 2-chloro,
butane.