McMurry (Kap.5,4)

Question 1

What are enantiomers also called?

Answer 1

Optical isomers

Question 2

Does enantiomers have the same physical properties?

Answer 2

Yes, same melting and melting points for instance.

BUT

they differ in the direction in which their solution rotate plane polarized light. (same amount, but opposite directions).

Question 3

diasteomers, do they have same physical properties?

Answer 3

NO, they are all different.

Question 4

what about meso? do they have the same physical properties?

Answer 4

They are optically inactive and have different boiling and melting points - therefore different.