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Brogaard, Rasmus Y.
Molecular Conformation and Organic Photochemistry Time-resolved Photoionization Studies / [electronic resource] : by Rasmus Y. Brogaard. - XVI, 122 p. 50 illus., 19 illus. in color. online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5053 .
Aspects and investigation of photochemical dynamics -- A time-resolved probing method: photoionization -- Simulation of time-resolved photoionization signals -- Simulation: the Norrish type-I reaction in acetone -- Experimental setups -- Paracyclophanes I: [2+2]cycloaddition of ethylenes -- Paracyclophanes II: The Paternò-Büchi reaction -- Probing structural dynamics by interaction between chromophores.
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.
9783642293818
Chemistry.
Spectroscopy.
Chemistry, Physical organic.
Chemistry.
Spectroscopy/Spectrometry.
Atomic/Molecular Structure and Spectra.
Physical Chemistry.
QD95-96
543.2-543.8
Molecular Conformation and Organic Photochemistry Time-resolved Photoionization Studies / [electronic resource] : by Rasmus Y. Brogaard. - XVI, 122 p. 50 illus., 19 illus. in color. online resource. - Springer Theses, Recognizing Outstanding Ph.D. Research, 2190-5053 .
Aspects and investigation of photochemical dynamics -- A time-resolved probing method: photoionization -- Simulation of time-resolved photoionization signals -- Simulation: the Norrish type-I reaction in acetone -- Experimental setups -- Paracyclophanes I: [2+2]cycloaddition of ethylenes -- Paracyclophanes II: The Paternò-Büchi reaction -- Probing structural dynamics by interaction between chromophores.
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.
9783642293818
Chemistry.
Spectroscopy.
Chemistry, Physical organic.
Chemistry.
Spectroscopy/Spectrometry.
Atomic/Molecular Structure and Spectra.
Physical Chemistry.
QD95-96
543.2-543.8