E/Z cis / trans – geometric isomers

The E/Z or cis / trans system can be used to name geometric isomers. Geometric isomers are molecules that have groups above and below the plane of a ring or double bond. It is important to consider and be aware of these isomers as even though the structural formula is the same, the molecules will have different physical properties and can have different chemical properties. So to make life easier, we have two systems for distinguishing between them. The cis trans ...