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3 questions with no upvoted or accepted answers
3 votes
0 answers
50 views

Can AMBER as low-layer be used to model reaction mechanisms using ONIOM? If yes, do you need to parameterize the intermediates and Transition states?

I'm debating moving from (M06-2X:PM7:UFF) to (M06-2X:PM7:AMBER) for modelling a reaction mechanism in an enzyme. I've already examined the errors introduced by my partitioning and whether they cancel ...
Runa's user avatar
  • 49
2 votes
0 answers
106 views

rate constant via flux-flux correlation function for linear potential energy surface

How does one calculate fully quantum mechanical rate ($\kappa$) in the golden-rule approximation for two linear potential energy surfaces? Attempt: Miller (83) proposes $\kappa=\int{Tr[\exp{(-\beta\...
t.jun's user avatar
  • 21
1 vote
0 answers
57 views

Stabilizing donor-acceptor interaction between orthogonal orbitals in the SN2 transition state?

For the $\mathrm{S_N2}$ reaction between chloroacetone and iodide, my professor has drawn a donor-acceptor interaction between the iodine lone pair attacking the Cl-substituted carbon and the π ...
Vivian Mortem's user avatar