Delta G Double Dagger 2 vs Ea2

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Vista_Farkhondeh_3O
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Joined: Tue Jul 12, 2016 3:00 am

Delta G Double Dagger 2 vs Ea2

Postby Vista_Farkhondeh_3O » Thu Mar 09, 2017 11:05 pm

So just to clarify, in the second transition step, Delta G double dagger 2 is the distance between TS2 and the original reactant, while Ea2 is the distance between TS2 and the intermediates? Please correct me if I'm wrong, or tell me this is right.

Natalie Rotstein 3J
Posts: 20
Joined: Wed Sep 21, 2016 2:59 pm

Re: Delta G Double Dagger 2 vs Ea2

Postby Natalie Rotstein 3J » Thu Mar 09, 2017 11:13 pm

ΔG double dagger can be between intermediate and transition or reactant and transition. It is usually shown as reactant to transition though. I think the difference isn't where in the graph it is measured but more just the context - they seem to be equivalent if you look at the equations to calculate Ea and ΔG double dagger, but ΔG is used more to gauge spontaneity I believe? If anyone else has clarifications / corrections to my answer, feel free to add on, I'm not entirely sure about the difference between them.

Xiaoman_Kang_2J
Posts: 19
Joined: Wed Sep 21, 2016 3:00 pm

Re: Delta G Double Dagger 2 vs Ea2

Postby Xiaoman_Kang_2J » Fri Mar 10, 2017 10:43 am

Vista_Farkhondeh_3O wrote:So just to clarify, in the second transition step, Delta G double dagger 2 is the distance between TS2 and the original reactant, while Ea2 is the distance between TS2 and the intermediates? Please correct me if I'm wrong, or tell me this is right.


Yes, delta G double dagger 2 is the distance between TS2 and the original reactant! This is more commonly used in organic chemistry.


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