How do we draw and identify the name for any structural isomer?

Asked by  | 23rd Jan, 2012, 10:58: PM

Expert Answer:

This is very simple if you follow the IUPAC rules of nomenclature. The carbon atoms in a compound can sometimes form a single continuous chain of carbon atoms, and sometimes they form a branched chain. That can also be represented using these skeletal structures.
The position of branching and the number of carbons in branching must be mentioned in the name. The below example will help to understand thi.
Butane has the molecular formula C4H10
All possible structural isomers of butane must also have the molecular formula C4H10.
namestructural formulamolecular formula
butane
  H
|
  H
|
  H
|
  H
|
 
H- C - C - C - C -H
  |
H
  |
H
  |
H
  |
H
 
C4H10

2-methylpropane
      H
|
     
  H
|
  H-C-H
|
  H
|
 
H- C - C - C -H
  |
H
  |
H
  |
H
 
C4H10

Answered by  | 23rd Jan, 2012, 11:28: PM

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