E–Z notation
id:
e-z-notation-187-12560898
title:
E–Z notation
text:
E–Z configuration, or the E–Z convention, is the IUPAC preferred method of describing the absolute stereochemistry of double bonds in organic chemistry. It is an extension of cis–trans isomer notation that can be used to describe double bonds having two, three or four substituents. E and Z notation are only used when a compound doesn't have two identical substituents. Following the Cahn–Ingold–Prelog priority rules, each substituent on a double bond is assigned a priority, then positions of the
brand slug:
wiki
category slug:
encyclopedia
description:
Notation in organic chemistry for double bonds
original url:
https://en.wikipedia.org/wiki/E%E2%80%93Z_notation
date created:
2007-04-20T09:49:47Z
date modified:
2024-09-08T14:23:46Z
main entity:
{"identifier":"Q1054288","url":"https://www.wikidata.org/entity/Q1054288"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/1/1e/Trans-2-butene.svg","width":512,"height":390}
fields total:
13
integrity:
16