3.3.7- optical isomerism
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What is optical isomerism
A form of stereoisomerism.
What are the features of optical isomers
Identical physical and chemistry properties Distinguished by ability to rotate polarised light
What are the two forms of optical isomers called
Enantiomers
How do you know if a compound has optical isomers
If it has no lines of symmetry Means it will have a chiral carbon
Definition of raemic mixture
An equimolar mixture of two enantiomers
Explain how a raemic mixture is made
Made because attack can come from above or below plane 50% chance of attack from either direction (law of probability) therefore 50% of each enantiomer and a raemic mixture
How does optical isomers affect animals etc
Amino acids can be chiral which means proteins are chiral so the two enantiomers can react differently to receptors
Draw the two optical isomers of CH3CH(OH)C2H5
Draw