Stereoisomers (13.2)

Question 1

What is a stereoisomer?

Answer 1

A molecule with the same structural isomer but arranged differently in the space

Question 2

What are some types of stereoisomers?

Answer 2

-Cis-Trans Isomerism
-E/Z isomerism
-Optical Isomerism

Question 3

What does a molecule need to have for E/Z isomerism to occur?

Answer 3

-Molecules with a C=C double bond

-Different groups attached to each carbon atom in a C=C bond

Question 4

What is conditions do you need to have a Cis-Trans isomer?

Answer 4

-C=C double bond

-Different groups attached to each carbon atom in a C=C bond

-One hydrogen atom bonded to each carbon atom in a C=C bond

Question 5

How can you tell the priority of atoms in E/Z isomers?

Answer 5

The higher the atomic number of the group attached to a carbon, the higher the priority.

Question 6

How can you tell if an isomer is Z or E

Answer 6

-Z isomers have the highest priority atoms on the same side ((either above or below C=C))

-E isomers have the highest priority atoms diagonally across either side of the C=C bond

Question 7

What is the name priority nomenclature?

Answer 7

Cahn-Ingold-Prelog ((named after the people who developed the priority rules))