Name: Structure of Benzene
Uploaded: 2019-07-19
Duration: 3 min 53 s
Description: Benzene is the most commonly known aromatic compound and is a significant part of gasoline. In this video, we will study the structure and properties of benz...

Question

Explain the method of writing E-Z configurations for geometrical isomers taking

CHCl = CFBr

as your example.

Accepted Answer

The configuration of the geometrical isomers is designated by two system which are, Cis-trans system and E-Z system.

The rules for E-Z system are :

The atoms or groups attached to each olefinic carbon are given priority as per the sequence rule.

If the higher priority groups are present on same sides across the double bond, the geometrical isomer is said to have Z-configuration or 'cis'.

If the higher priority groups are present on opposite sides across the double bond, the geometrical isomer is said to have E-configuration or 'trans'.

In the given compound, higher priority groups are $Cl$ and $Br$ .

When $Cl$ and $Br$ are present on same sides across the double bond, the geometrical isomer is said to have Z-configuration or 'cis'.

When $Cl$ and $Br$ are present on opposite sides across the double bond, the geometrical isomer is said to have E-configuration or 'trans'.

Hence, the geometrical isomers are shown below:

Explain the method of writing E-Z configurations for geometrical isomers taking $CHCl = CFBr$ as your example.

Important Questions on Hydrocarbons

Learn and Prepare for any exam you want !

Explain the method of writing E-Z configurations for geometrical isomers taking CHCl=CFBr as your example.

Important Questions on Hydrocarbons

Learn and Prepare for any exam you want !

Explain the method of writing E-Z configurations for geometrical isomers taking $CHCl = CFBr$ as your example.