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Types of Stereoisomers

DiaStereomerism (Including 'cis-Trans Isomerism')
DiaStereomerism (Including 'cis-Trans Isomerism')

Cis-trans isomerism- Cis/trans isomerism occurs when a double bond is present, because the pi bond involved prevents that bond from being "twisted" the same way that a single bond can be. A good example is 1,2-dichloroethene: C2H2Cl2. Optical Isomerism- Optical isomers are stereoisomers formed when asymmetric centers are present, for example, a carbon with four different groups bonded to it. Enantiomers are two optical isomers (i.e. isomers that are reflections of each other).

source: socratic.org
Optical Isomerism
Optical Isomerism

Optical isomerism is a form of stereoisomerism. This page explains what stereoisomers are and how you recognise the possibility of optical isomers in a molecule. What is stereoisomerism? What are isomers? Isomers are molecules that have the same molecular formula, but have a different arrangement of the atoms in space.

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