Organic Chemistry; Chapter 4: Isomers

Isomers

molecules that have the same molecular formula

Stereoisomers

molecules that have the same molecular formula, that have their atoms attached in the same way, and differ only in 3D organization of the attachments around one or more central atoms

Asymmetric (Chiral) Center

A central atom with 4 different atoms, or groups of atoms attached to it

Chiral

an object or molecule that has a non-superimposable mirror image

Achiral

an object or molecule that has a superimposable mirror image

Enantiomers

stereoisomers that are non-superimposable mirror images

Diastereomers

stereoisomers that are non-superimposable non-mirror images

Meso

compounds that have stereogenic centers but are superimposable so they are achiral

Epimers

diastereomers that differ in only one stereogenic center

Anomers

epimers that are formed by a ring closure

Cis-Trans Isomers

diastereomers that contain rings or double bonds

Isomers

Isomers