Term
| What is a constitutional isomer? |
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Definition
| An isomer with different connectivity |
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Term
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Definition
| An isomer with teh same connectivity |
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Term
| A stereoisomer without a stereocenter is called? |
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Definition
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Term
| An Achiral isomer, can have what? |
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Definition
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Term
| What isomers are associated with chiral centers? |
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Definition
| enantiomers and diastereomers |
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Term
| Two molecules with non-superimposible mirror images are called? |
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Definition
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Term
| What is a stereogenic center? |
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Definition
| chiral center with 4 different groups or elements attached |
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Term
| What is a property of an object and an image that ARE superimposable? |
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Definition
| Identical and NO chirality |
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Term
| What are the properties of ENANTIOMERS? |
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Definition
Mirror images
Non Identical
Non Superimposale
Enantio= opposite
Mirror imate at ALL chiral carbons |
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Term
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Definition
| Not a mirror image at all chiral carbons |
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Term
| How many enantiomers are there for "n" chiral carbons? |
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Definition
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Term
| What properties are the same for ENANTIOMERS? |
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Definition
Physical properties
Chemical properties |
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Term
| What is unique about ENANTIOMERS? |
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Definition
| Interact differently with plane-polarized light-Optical activity |
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Term
| Why is it important in biochemistry to deal with enantiomers? |
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Definition
| Reactions are selective for a particular enantiomer |
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Term
| How does the light rotate? |
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Definition
L= - counterclockwise
D=+ clockwise |
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Term
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Definition
| Clockwise rotation of the plane of plane-polarized light |
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Term
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Definition
| Counterclockwise rotation fo the plane of plane polarized light |
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Term
| How do you do the RS system? |
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Definition
1. Arrange in order of atomic number priority from 1-highest to 4 lowest
2.Orient molecule so group of lowest priority is away from you.
3. Read the three groups projecting toward you from highest1 to lowest 3 priority
If 1,2,3 is clockwise then config is "R" (opposite is S) |
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Term
| What is an equimolar mixture of ENANTIOMER? |
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Definition
| Racemic- does not bend polarized light |
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Term
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Definition
| Non mirror image at ALL chiral carbons |
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