Optical Isomers Flashcards
1
Q
What is an optical isomer?
A
- Same molecular and semi-structural formula, different spiral arrangements
- Type of enantiomer
2
Q
What is chirality?
A
- Optical Isomers are chiral
- When image is mirrored, and mirrored image cannot be superimposed on top of each other
- i.e. cannot be rotated to look the same
3
Q
When are organic molecules chiral?
A
- When they have a carbon with four different side chains
4
Q
Enantiomers/Stereoisomers:
A
- A pair of chiral molecules that exist in two forms that are mirror images of each other, but cannot be superimposed
5
Q
There are three possible outcomes for different enantiomers?
A
- One enantiomer is more effective than the other
- Each enantiomer has a different effect on the body
- One enantiomer is effective, one is harmful
6
Q
When does a molecule have optical isomers?
A
- When it has a chiral carbon…
- Meaning it is superimposable
- Meaning it has for unique groups attached to that carbon
7
Q
If enzymes do not contain their correct optical isomer…
A
- The primary structure is altered
- Active site is changed meaning that enzyme cannot do work on substrate
8
Q
Do two stereoisomers have the same melting point?
Why?
A
- Yes
- Same molecular properties
