Excellent explanation! I'm a theoretical chemist looking at some of these processes in my research and needed a refresher on The Hammond Postulate....haven't thought about it since undergrad Organic! Lol
I'm intrigued (genuinely!) by what you the is the significance (or lack of significance) of the earlier (necessarily more reactant-like) TS in the faster reaction - eg the protonation of 2-Me propene. And, how you explain that to students!? I'm trying to draft a good explanation and am struggling! Perhaps the key and more important issue is simply the influence of an intermediate's stability on the preceding TS?
Basically, if a transition state is close in energy to some other species, and they are one after the other along the reaction coordinate, it stands to reason that the arrangement of the atoms in the transition state and that species should be pretty similar. If the atoms changed their arrangement a large amount, it would cause a bigger difference in energy, since eg. bond lengths, bond angles, etc would be very different. Since it is only a postulate (hypothesis), it can't be proven, but it is useful in explaining the results of many reactions. I hope that helps!
Very helpful thank you!!!
Excellent explanation! I'm a theoretical chemist looking at some of these processes in my research and needed a refresher on The Hammond Postulate....haven't thought about it since undergrad Organic! Lol
Thank you very much! It helped me as I am pursuing BSc (Major) Chemistry from Distance Learning.
Great explanation Professor
Thank you very much.
Thank you for this video!!!
thanksss
Thank you !
I'm intrigued (genuinely!) by what you the is the significance (or lack of significance) of the earlier (necessarily more reactant-like) TS in the faster reaction - eg the protonation of 2-Me propene. And, how you explain that to students!? I'm trying to draft a good explanation and am struggling! Perhaps the key and more important issue is simply the influence of an intermediate's stability on the preceding TS?
I 'd like to know the physical meaning of hemmett .
Basically, if a transition state is close in energy to some other species, and they are one after the other along the reaction coordinate, it stands to reason that the arrangement of the atoms in the transition state and that species should be pretty similar. If the atoms changed their arrangement a large amount, it would cause a bigger difference in energy, since eg. bond lengths, bond angles, etc would be very different. Since it is only a postulate (hypothesis), it can't be proven, but it is useful in explaining the results of many reactions. I hope that helps!
@@OrganicChemistryExplained thank you very much
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