Frankfurt 2006 – wissenschaftliches Programm

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MO: Molekülphysik

MO 41: Hauptvortr
äge

MO 41.1: Hauptvortrag

Mittwoch, 15. März 2006, 10:40–11:10, H12

Light and molecules: from structure to function using laser pulses — •Leticia González — Institut für Chemie und Biochemie, Takustrasse 3, 14195 Berlin

This talk will address the problem of tracking the ultrafast dynamics of light induced reactions in real time and its possible manipulation from the theoretical point of view. The different steps that take place in a chemical reaction, like breaking and forming of bonds, isomerization processes, etc, occur in a femtosecond time regime. Using laser pulses in this time scale, it is possible to follow carefully the movement of the nuclei. Furthermore, today’s laser technology has made it possible to shape laser pulses in such a way that a particular nuclear motion can be artificially imprinted, leading to the so-called coherent control of molecular reactions. Using quantum chemistry and wave packet propagations I will illustrate how to use laser light to maneuver the structure and function of polyatomic systems. Specifically, molecular orientation, selective dissociation of molecular bonds, how to separate enantiomers from a racemic mixture, and how to initiate a molecular rotor will be shown.