isomers Flashcards
Do stereoisomers contain C atoms?
Yes
What qualities of stereoisomers are the same?
l. Same atoms and functional groups
Il. Same bonding patterns
What qualities are different for stereoisomers?
Different configuration or difference in covalent structure
What are the two types of stereoisomers?
Enantiomers and diastereomers
What is an enantiomer?
When two stereoisomers are non superimposable mirror images of each other they are enantiomers
What is a diastereomer?
When some of the chiral centers of the molecule change while some of them stay the same they are diastereomers
What is an asymmetrical C atom?
A carbon atom with 4 different types of atoms or functional groups attached to it
What does the L, D and allo in front of an enantiomer’s name mean?
L - the functional group of the alpha C atom is on the left
D-the functional group of the alpha caton is on the right
allo- the functional group attached to the non alpha C atom is on the same side as the alpha C atom’s
What is a rasemic mixture?
A 1:1 mixture of enantioners D- and L- pairs
What is a meso compound?
Pairs of molecules with a plane of symmetry or a molecule with chiral centers and an internal plane of symmetry
What are structural isomers?
Isomers with different bonding patterns
What are the three types of structural isomers
Skeletal, positional and functional
How do skeletal isomers differ from each other?
Difference in C skeleton
How do positional isomers differ from each other?
Location of functional group
How do functional isomers differ from each other?
Different functional groups
