Stereoisomerism Flashcards
What is the definition of stereoisomerism?
Molecules with the same structural formula but atoms are arranged differently in space
What are the 2 types of stereoisomerism?
Geometrical Isomers
Optical Isomers
What prefix do we use in geometrical isomers?
Cis
Trans
What are Cis isomers?
Cis isomers are compounds with the same group in the same direction relative to the plane
What are trans isomers?
Trans isomers are compounds with the same group in the diagonally opposite position from the double bond
What are E isomers?
(E)- : the higher priority groups are on opposite sides of the double bond.
What are Z isomers
(Z)- : the higher priority groups are on the same side of the double bond
What are the two requirements for stereoisomerism?
-A c=c which restricts rotation
-Two different groups to be attached to each carbon atom of the c=c group