Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MCAT O Chem
Ch. 2 Isomers
| Question | Answer |
|---|---|
| structural isomers | same molecular formula and molecular weight. different physical and chemical properties |
| Stereoisomers | same chemical formula and same atomic connectivity. Only differ by how atoms are arranged in space. includes geometric, isomers, enantiomers, diastereomers, meso compounds |
| Geometric compounds | compounds differ in the position of substituents attached to a double bond or cycloalkane. If only one substituent on either side of double bond use cis and trans, Z and E for more substituted compounds |
| chiral | an object that is not superimposable upon its mirror image. Carbon that has 4 different substituents and lack plane of symmetry |
| enantiomers | nonsuperimposable mirror images of chiral objects. opposite configuration at all chiral centers. have same physical and chemical properties, except optical activity and how they react in chiral environment |
| rotates plane of polarized light right (clockwise) | dextrorotary (+) |
| rotates plane of polarized light left (counter clockwise) | levorotary (-) |
| specific rotation | specific rotation([a])=(observed rotation (a))/(concentration g/ml x length dm) |
| diastereomers | non-mirror image configurational isomers. cis and tran alkenes are diastereomers. required to have multiple chiral centers, 2^n possible stereoisomers |
| meso compound | a molecule with an internal plane of symmetry. |
| conformational isomers | same molecules, only at different positions in their rotation |
Created by:
adam87
Popular MCAT sets