Optics properties and its applications.pptx

Optical activity

1. Optics

2. The optical isomers are called enantiomers . These are distinguished by +/-, D/L or more correctly R/S . A 50/50 mixture of the two enantiomers is called a racemic mixture or a racemate . 9/16/2025 2 Dr Seemal Jelani Chem-261

3. TASK Which of the following molecules are optically active? propan-2-ol 2-chlorobutane 1-chlorobutane 3-methylhexane butanone 2-methylbutanoic acid butan-2-ol 1-chloro-3-methylpentane 9/16/2025 3 Dr Seemal Jelani Chem-261

4. propan-2-ol NOT OPTICALLY ACTIVE 9/16/2025 4 Dr Seemal Jelani Chem-261

5. 2-chlorobutane OPTICALLY ACTIVE 9/16/2025 5 Dr Seemal Jelani Chem-261

6. 1-chlorobutane NOT OPTICALLY ACTIVE 9/16/2025 6 Dr Seemal Jelani Chem-261

7. 3-methylhexane OPTICALLY ACTIVE 9/16/2025 7 Dr Seemal Jelani Chem-261