Mnemonic devices Ochem

enantiomers, diastereomers, meso compounds....etc

Enchanted Mirror

Enantiomers: are like mirror images; think of two identical objects in a mirror reflecting each other. all stereocenters have opposite r and s configurations.(more than 2)

Different Directions

Diastereomers: not mirror images and have different configurations at one or more chiral centers. Remember some point in different directions.

Flexible Friends

Conformers: Different spatial arrangements of a molecule due to rotation around single bonds and ring pluckering

Symmetrical Sisters

Meso Compounds: Internal Planes of symmetry, achiral, multiple stereocenters.

Same Blueprint, Different Furniture

Sterioisomers: same molecular formula and connectivity but different spatial arrangements that cannot be converted into a different stereoisomer via free rotation. (includes asymmetric carbon and cis/trans stereoisomers)

Cousins close, friends far

Cis & Trans: cousins are related (same side of molecule) friends not related (opposite site of molecule)