VBTutorial2
Révision datée du 15 mai 2012 à 16:27 par Benoit (discussion | contributions)
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Tutorial n°2 (Tuesday p.m): VB applications (A. Shurki + D. Danovitch)
To the Tutors
Sason remarks and prospective 2 hours talk +
Philippe's remark on the initially proposed tutorial. are included in bold.
Qualitative
- Exercices from The Book ... >PCH< (30')
Computational
- Allyl cation : VB 3 configuration (3rd configuration has a large weight).
- Benzyl radical with most spin alternant determinants (2 determinants) (p228 of The Book) show spin location. Objection : this uses Heisenberg spin hamiltonian theory, a topic that we do not teach.
- H2O lone pairs : compute H2O+ states (2 configurations mixing) Objection : did you try to do that ? If we let the orbitals optimize themselves, I guess we will converge to the MO solution with weight 1.0, the other structure with weigt 0.0. The H2O+ states would better be done as qualitative exercises.
- R-X bond dissociation to R. .X and R(+) (-)X for stable ionic dissociation ... via solvent effects? (is that possible with xiamen ?)
(trash: * O2 paradigm : compute singlet - triplet gap : too hard)
Paper Exercices
Hands on Exercice 1 (title)
Subject
Here is a image example
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