Definitions for cis–trans isomerism
This page provides all possible meanings and translations of the word cis–trans isomerism
In organic chemistry, cis/trans isomerism is a form of stereoisomerism describing the relative orientation of functional groups within a molecule. It is not to be confused with E/Z isomerism which are related absolute stereochemical descriptors, only to be used with alkenes. In general, such isomers contain double bonds, which cannot rotate, but they can also arise from ring structures, wherein the rotation of bonds is greatly restricted. Cis and trans isomers occur both in organic molecules and in inorganic coordination complexes. The terms cis and trans are from Latin, in which cis means "on the same side" and trans means "on the other side" or "across". The term "geometric isomerism" is considered an obsolete synonym of "cis/trans isomerism" by IUPAC. It is sometimes used as a synonym for general stereoisomerism; the correct term for non-optical stereoisomerism is diastereomerism.
Find a translation for the cis–trans isomerism definition in other languages:
Select another language:
Discuss these cis–trans isomerism definitions with the community:
Use the citation below to add this definition to your bibliography:
"cis–trans isomerism." Definitions.net. STANDS4 LLC, 2014. Web. 31 Jul 2014. <http://www.definitions.net/definition/cis–trans isomerism>.