Diastereomers vs. Enantiomers/Chiral Centers

Enantiomers

If dealing with multiple chiral centers, if they all switch (R→S or S→R) then they are __?

Diastereomers

If dealing with multiple chiral centers, if some switch (R→S or S→R) but not all, then they are __?

An Enantiomer

Chiral molecules have what?

No Enantiomers (it is superimposable with its mirror image)

Achiral molecules have what?

A Meso Compound

A molecule with chiral enters but it is achiral

Chiral

If a molecule has an odd number of chiral centers, it is what?

Can be chiral or achiral (meso)

If a molecule has an even number of chiral centers, it is what?

Achiral

If a molecule has an even number of chiral centers and it has a plane of symmetry, it is what?

Even; R’s; S’s

Meso compounds always have an __ number of chiral centers and an equal number of __ and __

Chiral Centers

When you go from sp² to sp³, you have the chance at creating what?

1; Racemic

If you generate two enantiomers in a reaction, you should draw __ of them, and underneath it you should write __

Enantiomers

Same formula
Same connectivity
Same interatom differences
Same energy
Different molecules : Non-superimposable mirror images

Same molecule

Same formula
Different connectivity

Diastereomers

Same formula
Same connctivity
Different interatom differences

Enantiomers

Non superimposable mirror images

Diastereomers

Cis/Trans Moleules