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Physical Chemistry 3: — Chemical Kinetics — - Christian-Albrechts ...

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6.2 Polyatomic molecules 142<br />

I<br />

Models of potential energy surfaces:<br />

(1) Empirical or semiempirical models (e.g., LEPS),<br />

(2) Single points ( ) by ab initio calculations using quantum chemistry. Problem:<br />

Fitting the surface to the computed points.<br />

I<br />

<strong>Kinetics</strong> and Dynamics:<br />

(1) TST = Transition State Theory (statistical theory),<br />

(2) Classical trajectory calculations (by solving Newton’s equations),<br />

(3) Fully quantum mechanical wave packet calculations (by solving the timedependent<br />

Schrödinger equation).

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