1. enantiomers and diastereomers
7.5 STEREOISOMERISM:
enantiomers and diastereomers
do interchanges in class

2. STEREOISOMERS Stereoisomers are the same constitutional isomer,
but have a difference in the way they are arranged
in three-dimensional space at one or more of their
atoms.
and remember …...

3. ISOMERS CONSTITUTIONAL ISOMERS STEREOISOMERS ENANTIOMERS DIASTEREOMERS
Different compounds
with the same
molecular formula
each isomer could
have stereoisomers
STEREOISOMERS
ENANTIOMERS
DIASTEREOMERS
double bond or ring
with a ring
cis/trans
ISOMERS
both can apply
(geometric)

4. STEREOISOMERS ENANTIOMERS DIASTEREOMERS Stereoisomers whose
molecules are non-
superimposible mirror
images of each other
Stereoisomers whose
molecules are not mirror
images of each other
do interchanges in class

5. 7.5 ENANTIOMERS rotate this molecule is chiral non-superimposable
mirror images
rotate
this molecule
is chiral
note that the fluorine
and bromine have been
interchanged in the
enantiomer
do interchanges in class

6. Stereoisomers whose molecules are not mirror images of each other
7.5 Diastereomers
Stereoisomers whose molecules are not mirror images of each other
cis/trans isomers
do interchanges in class