OP, the term "diastereomer" does not tell us much about the molecule, it just tells us that two molecules have a particular relationship. A meso compound (which is always optically inactive) has optically active diastereomers.
OP, the term "diastereomer" does not tell us much about the molecule, it just tells us that two molecules have a particular relationship. A meso compound (which is always optically inactive) has optically active diastereomers.