Isomerization

<p>In <a href="/facts/Chemistry/SrNqkGVm">chemistry</a>, isomerization or isomerisation is the process in which a <a href="/facts/Molecule/N9ljSfFq">molecule</a>, <a href="/facts/Polyatomic_ion/FcPWAyLm">polyatomic ion</a>   or molecular fragment is transformed into an <a href="/facts/Isomer/PXlvDVdg">isomer</a> with a different <a href="/facts/Chemical_structure/r5rT1Lj4">chemical structure</a>. <a href="/facts/Enolization/aySJNbQx">Enolization</a> is an example of isomerization, as is <a href="/facts/Tautomer/ucdXGP9C">tautomerization</a>. 
</p><p>When the <a href="/facts/Activation_energy/GqkgPvo0">activation energy</a> for the isomerization reaction is sufficiently small, both isomers can often be observed and the equilibrium ratio will shift in a temperature-dependent <a href="/facts/Chemical_equilibrium/y8ToYXHp">equilibrium</a> with each other. Many values of the standard <a href="/facts/Thermodynamic_free_energy/GtjtQqnq">free energy</a> difference, 
  
    
      
        Δ
        
          G
          
            ∘
          
        
      
    
    {\displaystyle \Delta G^{\circ }}
  
, have been calculated, with good agreement between observed and calculated data.
</p>

Isomerization open-in-new

Isomerization