Molecular Conformation and Organic Photochemistry

Beschreibung

Rasmus Brogaard's thesis digs into the fundamental issue of how the shape of a molecules relates to its photochemical reactivity. This relation is drastically different from that of ground-state chemistry, since lifetimes of excited states are often comparable to or even shorter than the time scales of conformational changes. Combining theoretical and experimental efforts in femto-second time-resolved photoionization Rasmus Brogaard finds that a requirement for an efficient photochemical reaction is the prearrangement of the constituents in a reactive conformation.
Furthermore, he is able to show that by exploiting a strong ionic interaction between two chromophores, a coherent molecular motion can be induced and probed in real-time. This way of using bichromophoric interactions provides a promising strategy for future research on conformational dynamics.
Rasmus Brogaard's thesis digs into the fundamental issue of how the shape of a molecule relates to its photochemical reactivity. This relation is drastically different from that of ground-state chemistry, since lifetimes of excited states are often comparable to or even shorter than the time scales of conformational changes. Combining theoretical and experimental efforts in femto-second time-resolved photoionization Rasmus Brogaard finds that a requirement for an efficient photochemical reaction is the prearrangement of the constituents in a reactive conformation.
Furthermore, he is able to show that by exploiting a strong ionic interaction between two chromophores, a coherent molecular motion can be induced and probed in real-time. This way of using bichromophoric interactions provides a promising strategy for future research on conformational dynamics.
Nominated by the University of Copenhagen as outstanding thesis Investigates how molecular rearrangements and chemical reactions compete on different time-scales after photo-excitation Explores with a great variety of methods unknown ways of energy transfer trough conformational changes or chemical reactivity Includes supplementary material: sn.pub/extras

Autor*in

Rasmus Y. Brogaard

Themen in »Molecular Conformation and Organic Photochemistry«

Breaking and Formation of Chemical Bonds Conformational Changes and Reactivity Excited State Reactivity Femto-second Time-Resolved Photoionization Interaction Between Chromophores Molecular Conformation and Organic Photochemistry Paracyclophanes Paternò-Büchi Reaction Ultrafast Chemical Dynamics [2+2]Cycloaddition

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