1) a) Sketch generic potential energy curve for diatomic molecule. Label dissociation energy and zero-point energy. Label also the energy axis, and explain physically what the bottom of the well tell you and how you arrive at the conclusion. b) During Oğuzʼs seminar this week, we learned that he could not find the transition state over, either attachment of H+ to neutral molecule and/or F- to carbocation. Can you rationalize the fact using the sketched potential energy curve?
2) Describe antisymmetrization. What is it? Where does it come from? What is the most important consequence of antisymmetrization in electron-electron interaction?
3) What is molecular orbital? Describe using both equations and in your own words.
4) What is Born-Oppenheimer approximation?
5) What is Hessian, and in which situation do you use it? What information can you get out?
6) In H2+ molecule, we saw interference phenomena. Explain.
7) Give two definitive examples of tunneling in chemistry. Of course, “definitive” implies that the process must be observable. Explain your answer in detail.

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Quantum Chemistry Questions
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