Concerted reaction

In chemistry, a concerted reaction is a chemical reaction that takes place in a single step. For instance in the Sn2 reaction a concerted reaction takes place. Because the reaction rate is bimolecular there are two molecular species controlling the rate of the reaction. Because the rate is dependant on two molecules the reaction does not have any intermediate steps, only a transition state. This means that all the bond making and bond breaking takes place in a single step. In order for the reaction to occur both molecules must be situated correctly. Therefore, the reaction is said to be concerted because it occurs in one step. Analogous to a concerted action, everything occurs in one step.

Related Topics:
Chemistry - Chemical reaction - Sn2 reaction - Reaction rate - Transition state

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