Use of reaction path to locate transition states

For barriers to rotation, inversion, or other simple reaction that does not involve making or breaking bonds

For bond making or bond breaking reactions involving exactly one change in covalent bonding

For barriers involving an angle or dihedral and no covalent bonds are made or broken

Animation of reaction   ZIP file   Description
CH3I + F(-) ⇔I(-) + CH3F   CH3I + F(-)   SN2 reaction in aqueous media
         
CH3CHCH3 ⇔ CH3CH2CH2   CH3CHCH3   Hydrogen atom migration
         
         
Butane rotation   Butane   Torsion rotation about C-C-C-C