How to Predict whether the Transition State Will Be Reactant-like or Product-like or…

Hammond’s postulate (or the Hammond-Leffler postulate) helps us predict whether a transition state (TS) may be reactant-like or product-like (or something else) in an exothermic/endothermic reaction.


If we consider potential energy diagrams (reaction profiles), it’s well understood.





Click/tap to enlarge the images

TS = Transition state

RDS = Rate-determining step

Do you like energy diagrams❓ Let Chemaficionado know in the comments below or at mychemistryhomework@gmail.com❗

References:

(1)    Wikipedia Contributors. Hammond’s postulate. Wikipedia.

‌(2)    Chouhan, M. S. Advanced Problems in Organic Chemistry for JEE, 11th Ed.

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