stereoisomerism Flashcards
1
Q
stereoisomers
A
same structural formulae but have a different spatial arrangement of atoms
2
Q
E-Z stereoisomerism
A
- there is restricted rotation around the C=C double bond.
- there are two different groups/atoms attached to the carbon on both ends of the double C=C bonds
3
Q
priority group
A
atom with the bigger atomic number is classed as the priority atom
4
Q
naming E-Z isomers
A
first determine the priority groups on both sides of the double bond.
if the priority atom is on the same side of the double bond it is labelled Z
if the priority atom is on the opposite side of the double bond it is labelled E
5
Q
how do you remember Z isomers?
A
from the german - Zusammen (same)
or zame zide
6
Q
how do you remember E isomers?
A
from the german - entgegen (opposite)
or the epposite side
7
Q
cis trans isomerism
A
special case of E-Z isomerism in which two of the substituent groups are the same
